EasyXLS™ Professional Excel library for .NET has all the features needed to professionally:
- import and export Excel file in C#, VB.NET windows applications or ASP.NET web pages
- read and write Excel file in C#, VB.NET, ASP.NET or any other .NET compatible software
- convert between XLSX, XLS, XLSM, XLSB Excel file formats
- convert Excel file to XML, CSV, HTML, convert XML, CSV, HTML file to Excel
- calculate formulas from spreadsheets and extract the formula result
- fast handling of large Excel files and large spreadsheets

GemBox.Spreadsheet is a .NET component that enables you to read, write, edit, convert, and print spreadsheet files from your .NET applications using one simple API. With GemBox.Spreadsheet you get a fast and reliable component that’s easy to use. It requires only the .NET framework, so you can deploy your application easily without having to think about other licenses. And it’s up to 250 times faster than Microsoft Excel automation!

GemBox.Spreadsheet is a .NET component that enables you to read, write, edit, convert, and print spreadsheet files from your .NET applications using one simple API. With GemBox.Spreadsheet you get a fast and reliable component that’s easy to use. It requires only the .NET framework, so you can deploy your application easily without having to think about other licenses. And it’s up to 250 times faster than Microsoft Excel automation!

MindFusion offers you a fast and easy way to add state-of-the-art flowcharts, spreadsheets, calendars, reports, maps, charts and gauges. The pack combines several multi-purpose programming tools that add to your software features, which take months to develop.

A powerful suite of components for connecting applications with spreadsheets and spreadsheet data. Connect, create, and update spreadsheet data from Excel, Google, etc. from custom applications. The Spreadsheet Integrator is a set of components that allows developers to easily read, write, and update popular spreadsheet formats including Microsoft Excel and Google Spreadsheets. The components provide developers with straightforward access to spreadsheet data and include easy-to-use controls for manipulating layout, formatting, formulas, etc.

Aspose.Cells for .NET is an Excel Spreadsheet Programming API allowing software developers to manipulate and convert spreadsheet files from within their own applications. A combination of APIs and GUI controls - Aspose.Cells for .NET speeds up the spreadsheet processing and conversion tasks.

Develop high performance applications to Create, Edit, Convert or Print Excel spreadsheet file formats without requiring Microsoft Excel. Aspose.Cells for .NET is an Excel Spreadsheet Programming API allowing software developers to manipulate and convert spreadsheet files from within their own applications. A combination of APIs and GUI controls - Aspose.Cells for .NET speeds up the Microsoft Excel programming and conversion tasks.

xlsgen lets you read, write, calculate, display and print Excel spreadsheets without using Excel. It beats Excel in speed by orders of magnitude. Virtually any programming environment can be used including C/C++, VB, Java, C#/VB.NET, Delphi and so on thanks to its COM-based programming interface. xlsgen generates Excel files for Excel 97, 2000, XP, 2003, 2007, 2010, 2013 and 2016. xlsgen also exports your spreadsheets as PDF, ODF, XPS, HTML, CSV and XML.

Easily connect Delphi & C++Builder Apps with real-time data from Excel spreadsheets. Use Excel to manage the data that powers your applications.

Connect to Excel Spreadsheets from Rad Studio Data Explorer.
Comprehensive support for CRUD (Create, Read, Update, and Delete) operations.
Use Excel Spreadsheets as simple real-time database to power Delphi & C++Builder Apps.

The CData ADO.NET Provider for Google Spreadsheets gives developers the power to easily connect .NET applications to Google Sheets data. The Google Sheets Data Provider makes this Google Sheets data look like SQL tables in your applications. With the CData ADO.NET Provider for Google Spreadsheets developers can simply DataBind to data, just like using SQL Server.

Simple .NET Integration With Google Spreadsheets
DataBind to Google Sheets using standard Visual Studio wizards.
Comprehensive support for CRUD (Create, Read, Update, and Delete) operations.
Use Google Spreadsheets as a simple real-time database to power .NET applications.