Use FarPoint Spread 8 COM to easily incorporate advanced grid and high-level spreadsheet features into your applications. FarPoint Spread 8 COM offers unmatched flexibility at the cell level for maximum control over the display and entry of the data, plenty of events to respond to user changes and an impressive feature list for everything in between; including import/export capabilities, including the ability to import and export Excel 97, 2000 and Excel 2007 files (requires the .NET Framework). FarPoint Spread 8 COM also offers enhanced printing, many cell types, formulas, a 64bit DLL and many more features. FarPoint Spread 8 COM will allow you create a spreadsheet with up to 2 billion rows by 2 billion columns.

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

Powerful SharePoint Excel Services Integration
DataBind to SharePoint Excel Services using standard Visual Studio wizards.
Comprehensive support for CRUD (Create, Read, Update, and Delete) operations.
Integrate .NET applications with live Excel Spreadsheet data hosted on SharePoint on-premise or Online!

GemBox.Spreadsheet is a .NET component that enables developers to read, write, convert and print spreadsheet files (XLSX, XLS, ODS, CSV, HTML, PDF or XPS) from their .NET applications using one simple API. GemBox.Spreadsheet requires only .NET Framework and is many times faster than Microsoft Excel automation. GemBox.Spreadsheet is a .NET component that enables developers to read, write, convert and print spreadsheet files (XLSX, XLS, ODS, CSV, HTML, PDF, XPS) from .NET applications in a simple and efficient way without requiring Microsoft Excel to be installed on the server.

LibXL is a library that can read and write Excel files. It doesn't require Microsoft Excel and .NET framework, combines an easy to use and powerful features. Library can be used to

Generate a new spreadsheet from scratch
Extract data from an existing spreadsheet
Edit an existing spreadsheet

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. Fully-managed C# components optimized for cross-platform Xamarin development. Build applications with Xamarin and ship across iOS, Android, and Mac.

Aspose.Cells for .NET is an Excel spreadsheet programming component and library that allows 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 Microsoft Excel programming and conversion. The APIs give developers powerful tools for performing simple file conversions or more complex tasks. Developers have control over page layout, formatting, charts and formulas. They can read and write spreadsheet files and save out to a variety of image, portable and text file formats. Aspose.Cells for .NET is fast and reliable. It saves time and effort compared to developing your own spreadsheet manipulation solution or using Microsoft Automation.

GemBox.Spreadsheet is a .NET component that enables developers to read, write, convert and print spreadsheet files (XLSX, XLS, ODS, CSV, HTML, PDF or XPS) from their .NET applications using one simple API. GemBox.Spreadsheet requires only .NET Framework and is many times faster than Microsoft Excel automation. GemBox.Spreadsheet is a .NET component that enables developers to read, write, convert and print spreadsheet files (XLSX, XLS, ODS, CSV, HTML, PDF, XPS) from .NET applications in a simple and efficient way without requiring Microsoft Excel to be installed on the server.