xml has been updated. たかだか数十万セル程度であればなんら問題なしですが、何故Excelシートに 万行も書くのでしょうね? これOutOfMemoryなしに出力できたとしても読み込めないのでは. Like CSVHelper, you can create a file by reading an IEnumerable object. In the PivotTable Styles gallery, right-click the style you want to duplicate. I am working on a project in which i do some calculations for products and produce some end results then browse an excel file containing reference value for the products, but now i require that if a particular product is not found, that product should be automatically added to the reference file so. txt) or view presentation slides online. NET In this article. The manual way will take you to the Home/Conditional Formatting/Manage Rules… window where you can delete the rules you want. Every Time someone enables #nuget package restore on a solution, a kitten dies. NET C# How to convert one or more MS Word DOC and DOCX files into a PDF using Microsoft Office primary interop assemblies (PIAs), also known as Microsoft Office Interop. So i'm playing around with EPPlus and C# and i have a form with some text fields, and i'm trying to add the text field values to the next available empty row and i'm having some trouble. It was over a decade ago when I was first asked to generate Microsoft Office files from a web application. NET Excel交互提供了出色的. In this article we will develop an SSIS package that uses the EPPlus. Create a new C# console application project in Visual Studio. Create a new project and add a Command Button to the Form. Add this code to Main. It works great for reporting, unit tests and user defined functions (UDFs). This package will only be available to download with SemVer 2. You can add custom tabs to the ribbon in Microsoft Office programs to have access to all of your most-used commands in one convenient place. net Я пытаюсь заполнить существующий файл xls с помощью EPPlus, но я никогда не использовал его раньше. PowerShell to update and refresh Excel data connections Scenario: You have multiple Excel files that applies the same template and formatting, but uses different data sources. dll assembly to create an Excel file and write to it while looping through the result set of a SQL Server query. NET articles, book reviews, software reviews, and software download and purchase advice. Go to Administration à System Settings Go to Settings à My Apps Click on Create App It will take us to App Designer, provide details. Repeat these steps for Microsoft Excel and Powerpoint if you want to disable Protected View there too. It will be automatically added to ur bin dirctory. - Save file in XLS format losing all. Now MVC 6 support model binding of multipart form data, which means, you can include file as the property of your model. ASP.NET Core使用EPPlus操作Excel. So you could do something like this: using (var app = new ExcelPackage(new FileInfo(inputPath))) { //process app. xlsx) file while creating ASP. 这是一个基本的PowerShell模块,用于通过 EPPlus 库处理 Excel,对Excel本身没有依赖性。 感谢 Doug Finke的ImportExcel示例在这之前没有看到 EPPlus ! 感谢 Philip Thompson的扩展模块说明如何在PowerShell中使用 EPPlus; 感谢 EPPlus的团队和贡献者,为实现. 3) and above or NuGet client 4. After programming a complex sort in Excel, it is often helpful to save that sort to use again on the same table. Move(tempNewFile, fileName) into a try-catch is because I don't wan't to show the file corrupted message if I didn't previously call File. docx), but I have not succeeded yet and I had to use office interop libraries to process. 0 package as it has a package dependency on SemVer 2. I have a workbook that is stored as read only on a SharePoint site. xlsx) file while creating ASP. Excel to PDF Converter is the fast, affordable way to create professional-quality documents in the popular PDF file format. It will be automatically added to ur bin dirctory. To install it via Nuget, type: the command: Install-Package EPPlus. Yesterday, I tweeted:. xml has been updated. You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. Why it gives you an access denied message is where you are pointing your program to creates the file. If I open the file in LibreOffice, make a change, and save the file, our internal tool throws an exception (see below). This post describes how to refresh a pivot table when data is edited/added or deleted on another worksheet. How to Query an Excel Workbook as a Database with PowerShell. Once you check or un-check the settings you want you can close the windows. net library that reads and writes Excel 2007+ files using the Open Office Xml format (xlsx). Drawing from technology, finance, sports, social psychology, and complexity theory, Everett Harper looks at the key practices that are crucial for solving our most critical challenges. The following code is substantially based on the work of Nixta but I have made several changes including the manual specification of the delimiting character. net-mvc,excel,epplus. The last version 2. Here we generate static datatable to export in excel format. EventBus is an open-source Android library that simplifies communication between Activities. These are the top rated real world C# (CSharp) examples of OfficeOpenXml. Here we generate static datatable to export in excel format. You will see that only the one line has been added to master. Don't worry if you have not come across it yet, because here in this article, I'll show you how to export data to an Excel sheet in a Windows Forms. This article discusses how to set up a dynamic Crystal Report to use a Variable to pull data from the AdventureWorks2014 database on a SQL server 2014 instance for a Vendor in a Selection Formula. 一 在negut添加EPPlus. The Open XML SDK provides tools for working with Office Word, Excel, and PowerPoint documents. The Compatibility Checker will automatically launch when you attempt to save a workbook in the Excel 97-2003. Création de fichier Excel avec Epplus : Fichier Non valide Bonjour, Je viens vers vous, car après de multiple recherches il semblerait que je sois la seule à avoir ce problème. We operate a free and impartial advice line available to residents in Merseyside. Requieren para crear archivos de excel (con varias hojas) de usar. After playing with the arguments for SaveAs(), so the file name is the same as the one opened, i cannot find a way to really save my changes. I'll cover the following topics in the code samples below: SqlConnection, SqlCommand, SqlDataReader, ExecuteReader, DataTable, Load, String, and Using. You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43. Simple select the exact same cells and click on the sort button again. net And EPPlus? Oct 17, 2011. This article allows me the opportunity to demonstrate a feature of my newest favourite open source library: EPPlus. NET MVC in this tutorial and this is the fastest way for doing data import. How to fill a shape with transparent background color in Excel? Normally, the shape we inserted into worksheet was filled with no transparency background color. These are the top rated real world C# (CSharp) examples of OfficeOpenXml. Move(tempNewFile, fileName) into a try-catch is because I don't wan't to show the file corrupted message if I didn't previously call File. Anaguib on Sat, 20 Aug 2016 13:37:10. They are handled with the Microsoft. I found this site to get all possible linux bistros – This site is designed to meet all of your Linux distribution download needs, including searching for fast mirrors, receiving email updates when new versions of your favorite distributions are released and reading reviews. How to turn several XLSM spreadsheed files to XLSX format? Use our FREE ONLINE service or get a Total EXCEL Converter for unlimited work!. How to open and edit a Word DOC or DOCX file from FileSystem or Byte array in C#. The HTML5 export buttons plug-in for Buttons provides four export buttons: copyHtml5 - Copy to clipboard csvHtml5 - Save to CSV file excelHtml5 - Save to XLSX file - requires JSZip; pdfHtml5 - Save to PDF file - requires PDFMake; This example demonstrates these four button types with their default options. Utilizar EPPlus, es tan sencillo como abrir el gestor de paquetes Nuget, buscar en línea la librería EPPlus e instalarla tanto para el proyecto principal - que no tendrá ningún problema en. ฐานข้อมูล SQL Server โดยใช้ EPPlus ไป. Another alternative is using EPPlus. To display a Negative Number with Parentheses, we can use Excel Custom Formatting. たかだか数十万セル程度であればなんら問題なしですが、何故Excelシートに 万行も書くのでしょうね? これOutOfMemoryなしに出力できたとしても読み込めないのでは. For example, it is not possible to use the < character as it is used in the HTML syntax to create and close tags. The last release was from 2012, and the last commit was yesterday, 2013-12-05. Close the inspector using the red cross in the top-right corner of the window, click NO when Outlook asks you "Want to save your changes to this message" - this closes the inspector, double-click the same message once again to open a new inspector. BinaryWrite(byte [] arr)を使用してコードビハインドファイルでExcelPackageを呼び出しています。. 本人用excel(xlsx)做数据源进行读取存储修改数据,添加或修改时时使用EPPlus进行操作,读取时用OleDbConnection类连接excel,使用sql语句查询,目前发现一旦使用EPPlus操作保存后,OleDbConnection类无法读取excel,报错“外部表不是预期的格式”,求大神指点. In this walkthrough, we'll see how to call a Stored Procedure directly from Excel. As usual you can use A1 or Row/Column notation, see Working with Cell Notation. If Excel successfully saves the temporary file, the temporary file is renamed with the file name you specify in the Save As dialog box. As this is a “Winding” font, and the moment you insert it in a cell Excel changes the cell font style to “Winding”. dll as a reference to your project. How to Query an Excel Workbook as a Database with PowerShell. exe, then to save the file to your PC, click Save. Images are a great way to liven up a document, and Word offers a few methods to insert them. Close() End If End If End Sub Remarks. NET library directly. Exporting data to an Excel doesn't get. SaveAs extracted from open source projects. To open the same workbook every time you start Excel, in the File menu click > Save as > Computer, Browse and then browse to the XLSTART folder. 0 Object Library in you project. If you have any question or suggestion, please comment bellow. After programming a complex sort in Excel, it is often helpful to save that sort to use again on the same table. EPPlus supports multiple properties of spreadsheets like cell ranges, cell styling, charts, pictures, shapes, comments, tables, protection, encryption, pivot tables, data validation, conditional formatting, formula. I use SqlBulkCopy class in ASP. An archive of the CodePlex open source hosting site. But then there is an elegant way of doing this, that makes you look like an Excel Guru and that’s the one […]. The following code shows how to create and apply cell style. It is a great library, very fast and full feature. If I open the file in LibreOffice, make a change, and save the file, our internal tool throws an exception (see below). EPPlus is a very helpful open-source 3rd party dll for exporting data to excel. If you're not concerned about potential issues, you can turn the Compatibility Checker off. other than that, EPPlus seems great. Like CSVHelper, you can create a file by reading an IEnumerable object. In this walkthrough, we'll see how to call a Stored Procedure directly from Excel. Net中的SQL Server 我可以通过从另一个variables构造variables来调用variables吗?. Selecting Range using. Unfortunately, you’ll have to adapt the script to your needs. As is the case for most of my blog posts, the easiest way to start any Open XML SDK solution is to create the right starting template. ImportExcel is using the same library and it's free to download. I'm working on Mvc web app, I want to create new excel sheet with two drop down lists filled with data from database. This sample demonstrates how you can use the ClientExportManager to export content to. You might possibly need to use OpenXmlAttribute too. c# - Writing an Excel file in EPPlus up vote 10 down vote favorite 4 I have been stuck on this for days and despite all of the help out there, none of these solutions have been working for me. Can you please suggest me the way forward?. If you’ve made the jump and updated to Windows 10, you might have noticed something strange: the System process sometimes takes up an insane amount of RAM, possibly over 1GB. In this section, I'll introduce you how to create a PDF file and save it to stream, and how to load PDF file from stream on the contrary. The sample contains two pages, the first one (ExportOrgChart. NET MVC: Upload & Read Excel File. However, if you save the file before you close it, you will save the links with the current broken path. You are rite SaveToStream method is not available in interop in place of Save method is there. 3,084 Note that we have to close the output writer before reading the output file's metadata so that we get the correct file size. See this page for the MSDN documentation on working with Word documents. If you want to do a feature, post an issue about the feature first. 0 and above. /* Save workbook as a file */ oPackage:SaveAs(NEW System. Anaguib on Sat, 20 Aug 2016 13:37:10. Type "mdsched" into the Start menu and select "Windows Memory Diagnostic from the list. xlsx files). Your question is slightly ambiguous. 5 to work with one of the documents, this is designed to be easy to do. Note that the file won't be unpacked, and won't include any dependencies. com which provides. Whether we have multiple Excel files, or just multiple worksheets in Excel, PowerShell simplifies the process. Today I needed to dynamically-generate an Excel file (using the awesome EPPlus), without saving it as a physical file first. I dont know from which version onwards but EPPlus's SaveAs method accepts a FileInfo. dll file as reference to ur project. HTML to PDF Converter - Excel Library - ASP. ImportExcel is using the same library and it's free to download. See this page for the MSDN documentation on working with Word documents. In addition to that, once the format is in CSV, we have multiple options to insert the data into. 3) and above or NuGet client 4. It will be automatically added to ur bin dirctory. end(xlright) Hi there! This is definately a quick question, but I need to select a range. The Create a Macro chapter illustrates how to run code by clicking on a command button. So you could do something like this: using (var app = new ExcelPackage (new FileInfo (inputPath))) {//process app. dll as a reference to your project. f; Add reference to EPPlus. It also doesn't make sense to close the workbook in the "BEFORE" event when excel will really close the workbook after the event handler is called. Copy function. EPPlus writes Excel 2007/2010 files using the Open Office Xml format (xlsx). Additionally, if all the users of a shared workbook save and then close the workbook, the workbook may not decrease in file size as it should. This package is considered a SemVer 2. But then there is an elegant way of doing this, that makes you look like an Excel Guru and that’s the one […]. In one of my community projects I needed to output some listings as Excel file. Click the first button and notice the modified subject of the email in the inspector window. I dont know from which version onwards but EPPlus's SaveAs method accepts a FileInfo. To acheieve this i have written a servlet using POI-XSSF. But it can be used a neat alert/confirm box instead of using the JavaScript confirm box. Dimension is as close as you can get, but rows are included in the Dimension if any column contains data or if any row above or below contains data. So you could do something like this: using (var app = new ExcelPackage (new FileInfo (inputPath))) {//process app. close(); }. C# (CSharp) OfficeOpenXml ExcelPackage. Sections ; Prerequisites: Implied knowledge when using CsvHelper. If you can't find any sample code here to do what you want, and you're on a tight schedule, just contact me and I'll show you how to accomplish your specific requirement. 0, and includes. This tutorial explains how to Import Data from Excel File into an SQL Server Database Table. Excel found unreadable content in 'filename. Create Excels with C# and EPPlus: Import posted in dotnet on 1 May 2017 • by Wouter Van Schandevijl. It makes CSV file Reading / Writing a very easy task. Providing information to the public about energy efficiency. The Open XML SDK provides tools for working with Office Word, Excel, and PowerPoint documents. This package will only be available to download with SemVer 2. How to delete all sheets except specified/current one in Excel? For deleting all sheets in an Excel workbook except specified one or current active sheet, you can deal with this as below methods shown. 0 service pack 1. You can see the offers as part of a full market. Don't forget to close and clean up after yourself. Finally we need to save the file, we do this by calling the SaveAs function on the package. Writing: Writing CSV data. How to Hide and Unhide Rows and Columns in Excel 2013 Lori Kaufman @howtogeek July 8, 2013, 2:00am EDT There may be times you want to remove a row or column from a spreadsheet, but you don’t want to permanently delete it from the worksheet file. How can I change the color of a cell to red if the date stored in that cell has passed?—. To be able to import the data from the Excel worksheet into the SQL database, the user first needs to define the Data Flow Task, dragging from the SSIS Toolbox into the Control Flow area like shown in the image below. (It is interesting that the Microsoft Knowledge Base doesn't have any articles on recovering data from a corrupted Excel 2007 workbook. You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. Close package. Move(fileName, oldFileTempName);, instead, just. 3) and above or NuGet client 4. net library that reads and writes Excel files using the Open Office Xml format (xlsx). In order to use XlsIO in your UWP application, please add the required assemblies in your UWP application. This creates the Excel objects and points to the location of the Excel files which have the macros GenRept (to attach to a SQL database and import data to a worksheet) and SelfDestructCall (a macro using VBE to remove all macro code and itself after the file is copied). We will use the EPPlus library to read and update data in the excel file. Today's prescription includes an article and a video on how to create dynamic chart titles in excel. NET The following sections you can find how to open and edit an Excel worksheet through VB. Web Development I''m using epplus to write in a file an extense quantity of information in an excel template, but then I need to close the ExcelPackage as to be usable, ID #42106309. aspx page in your project and generate datatable and also take one asp button to export excel sheet. PNG image. Create New Excel Spreadsheet Programatically Using epplus in C# EPPlus is a really good library to help you generate Excel spreadsheets together with C#! You could refer to the following link to create Excel 2007/2010 spreadsheets with C# and EPPlus. Hey, Scripting Guy! I’d like to be able to open an Excel spreadsheet, get all the information off one of the worksheets, and then save that worksheet data to a comma-separated values file. Enter "Install-Package EPPlus " in your Package Manager Console and remember to choose the project you will be adding the package to. Many times, there can be a need of exporting your HTML table into excel (. dll' cannot be copied to the run directory. Finally we need to save the file, we do this by calling the SaveAs function on the package. It highly improves the performances of the development teams by allowing each member to enjoy the experience of the software gurus. In a clean install of Windows Vista and later, the path to the XLSTART folder is usually: Office 2013 - C:\Users\(User name)\AppData\Microsoft\Excel\XLSTART. dll assembly to create an Excel file and write to it while looping through the result set of a SQL Server query. If I open the file in LibreOffice, make a change, and save the file, our internal tool throws an exception (see below). Our internal tool uses EPPlus to read the file and generate user profiles. Hướng dẫn. Move(tempNewFile, fileName) into a try-catch is because I don't wan't to show the file corrupted message if I didn't previously call File. gif) or export to another file such as a Word document or PowerPoint presentation. Open the most recent backup copy of the workbook and enter any missing data or rebuild features since the last backup. xlsx file and print the contents in xml format so that i can load a dhtmlx grid which accepts only csv, xml files. Today's prescription includes an article and a video on how to create dynamic chart titles in excel. Thanks for watching. How to Hide and Unhide Rows and Columns in Excel 2013 Lori Kaufman @howtogeek July 8, 2013, 2:00am EDT There may be times you want to remove a row or column from a spreadsheet, but you don’t want to permanently delete it from the worksheet file. These files are hard to read in C# programs. NET 5 MVC 6 Microsoft changed the File upload feature. Here we generate static datatable to export in excel format. : Free, open source & it’s actively maintained, the last commit on time of writing was 2017 February 17th on their codeplex repository. If you can't find any sample code here to do what you want, and you're on a tight schedule, just contact me and I'll show you how to accomplish your specific requirement. Feel free to share your comments on my post. Copy function. Enter "Install-Package EPPlus " in your Package Manager Console and remember to choose the project you will be adding the package to. We operate a free and impartial advice line available to residents in Merseyside. In this binding, the compiler already knows about what kind of object it is and what are the methods or properties it holds, here the objects are static objects. SaveAs(new FileInfo(outputPath)); } Unlike the Save method SaveAs method overwrites file as well in case file name already exists. Close the inspector using the red cross in the top-right corner of the window, click NO when Outlook asks you “Want to save your changes to this message” – this closes the inspector, double-click the same message once again to open a new inspector. Close any open programs and save your work. Exporting data to an Excel doesn't get. Note that the file won't be unpacked, and won't include any dependencies. EPPlus в VB. Some features are intentionally left out, some features may already be in the works, or I may have some advice on how I think it should be done. NET is an advanced Word document processing API to perform a wide range of document management and manipulation tasks. Another alternative is using EPPlus. パス変数は現在使用されていません。 ExcelPackageパッケージオブジェクトはsaveメソッドを使用しています。次に、Response. Open and Edit Cells in an Excel file in VB. archivos xlsx). This class can either open and overwrite an existing file or create a new file. First add the. In the below blog, I would like to explain how we can overcome the above problems using OPENXML/ EPPlus third party as EPPlus is a free tool to create the spreadsheet using C#. xls 1 4 2 5 3 6 VB. Save ();} I have been stuck on this for days and despite all of the help out there, none of these solutions have been working for me. 3,084 Note that we have to close the output writer before reading the output file's metadata so that we get the correct file size. EPPlus Excel addresses are not zero based: The first column is column 1! Also, before writing any loops, you might want to check out the LoadFromXXX methods. nupkg file to your system's default download location. If you want to work with XLS on your server without installing Office and using COM, check out NPOI and I’m sure you won’t be disappointed. Additionally, if all the users of a shared workbook save and then close the workbook, the workbook may not decrease in file size as it should. Net MVC ASP. Go to Administration à System Settings Go to Settings à My Apps Click on Create App It will take us to App Designer, provide details. Move(tempNewFile, fileName) into a try-catch is because I don't wan't to show the file corrupted message if I didn't previously call File. 読み込みにはExcelDataReader、書き込みにはEPPlusを使いましょう。 出力100万行突破. XLSX Template with EPPlus and Web API, save as XLSX or PDF I’ve been using NPOI for years to create/edit XLS documents via C#, and it works perfect. Clear () Response. Intriguing! I hadn’t heard of EPPlus. Configuration: Configuring the behavior of CsvHelper to work with your CSV data or custom class structures. NET MVC you will see all basic functionalities of the extension. SaveAs (new FileInfo (outputPath));} Unlike the Save method SaveAs method overwrites file as well in case file name already exists. And there are no hidden cells in the entire spreadsheet. Similar to the apps that we see in Menu Bar for Dynamics 365, we can create our own apps. So you could do something like this: using (var app = new ExcelPackage (new FileInfo (inputPath))) {//process app. If you’ve made the jump and updated to Windows 10, you might have noticed something strange: the System process sometimes takes up an insane amount of RAM, possibly over 1GB. Create a Style. NET library for reading and writing Excel files, without Excel. BurnIgnorance. doc and Docx for. After programming a complex sort in Excel, it is often helpful to save that sort to use again on the same table. Get answers to programming and other technology questions. Excel Data Reader is a lightweight and fast library written in C# for reading. An archive of the CodePlex open source hosting site. How to open an Excel file in C# The following section explains how to open and read an Excel file through C#. I use EPPlus library to process Excel file (and automate a lot of work). We need to display negative numbers in parentheses to differentiate the positive numbers from the negative numbers. docx respectively which I do not want to use. Working with Cell or Range Formatting. Create-write to an Excel 2007-10 Spreadsheet From an SSIS - Free download as Word Doc (. f; Add reference to EPPlus. One click to delete all sheets except current active one with Kutools for Excel. So you could do something like this: using (var app = new ExcelPackage(new FileInfo(inputPath))) { //process app. In this walkthrough, we'll see how to call a Stored Procedure directly from Excel. The performance of early binding is fast and it is easy to code. You need some kind of library to read/write xls(x) You can use Microsoft. Reading: Reading CSV data. I forgot tell u one thing. With homage to the esteemed Mr. I dont know from which version onwards but EPPlus's SaveAs method accepts a FileInfo. Read more. Net中的SQL Server 我可以通过从另一个variables构造variables来调用variables吗?. It works great for reporting, unit tests and user defined functions (UDFs). 2 was also released. Excel - but then you also need to have Excel installed on the computer where. Robbe has been a Microsoft MVP in C# since 2004. But then I have a long list of hyperlinks in my Excel worksheet. 環境 Visual Studio 2010 EPPlus:EPPlus-Create advanced Excel 2007 spreadsheets on the server - Home SQLServer2008 R2今回の要件は Excelファイルを読み込み GridViewに表示 読み込んだデータをストアドプロシージャで登録 として、サンプルコードを書いてみました。. It covers a few events that will prove useful in developing your Excel add-ins. The temporary file contains the whole contents of your workbook. Read more. Simply put, there are two ways to turn Conditional formatting On and Off. SaveAs (new FileInfo (outputPath));} Unlike the Save method SaveAs method overwrites file as well in case file name already exists. Apart from a simple tick mark, there is also a boxed check mark is there (254) which you can use. 2 was also released. What is FastExcel Version 3 and why do you need it? FastExcel has been used successfully by thousands of users since it was first launched in 2001. However I just like to highlight that this solution might not work 100% time as there are chances that when user close the browser, he is not connected to internet. xlsx files). Writing Large Datasets to Excel Files Using EPPlus in C# Recently, I had to resolve an issue of a corrupt report file of an enterprise application in production. Save() Save(String password) 行と列の最大値. Our internal tool uses EPPlus to read the file and generate user profiles. You are rite SaveToStream method is not available in interop in place of Save method is there. 一 在negut添加EPPlus. When you're unable to move or copy a file because it's write-protected, your problem may stem from a number of causes. It recognizes and checks the methods, or properties during compile time. Using this method you can save an entire workbook or any portion of it, such as a selected range of cells or chart, to a static web page (. NET applications. Save-Excel -Close. Don't worry if you have not come across it yet, because here in this article, I'll show you how to export data to an Excel sheet in a Windows Forms. It supports. 在Excel中dynamic设置总和公式 从Excel范围填充Outlook中的列表框 – 获取单元格的超链接 通过VBA删除重复项仍然会popup,尽pipedisplayalerts = false 使用C#和VB. Hướng dẫn. HTML to PDF Converter - Excel Library - ASP. Excel Binary Workbook files store information in binary format instead of the XML format like with most other Excel files. Save ();} I have been stuck on this for days and despite all of the help out there, none of these solutions have been working for me. We operate a free and impartial advice line available to residents in Merseyside. I want the second drop down list to be dependent on selection changed of first one. NET MVC: Upload & Read Excel File. In one of my community projects I needed to output some listings as Excel file. NET library directly. Here Mudassar Ahmed Khan has explained how to upload Excel File and then read and import its data into DataSet or DataTable using C# and VB. dll库文件。 之前有写过直接只用Microsoft.