Automate Excel with C#

Free Spire.XLS for .NET

Free Spire.XLS for .NET is a Community Edition of the Spire.XLS for .NET, which is a free Excel API for commercial and personal use.

As a standalone .NET library, Free Spire.XLS for .NET enables developers to create, manage and manipulate Excel files on any .NET(C#, VB.NET, ASP.NET, .NET Core) applications.

Limitations of free version:

Note for XLS formats that the free version of the Spire .NET library is limited to

  • five sheets per workbook and
  • 200 rows per sheet

This limitation is enforced during reading or writing XLS or PDF files.

Note for XLSX formats There is no any limitation when loading and saving .xlsx file format. However, when converting Excel files XLSX to other formats, such as PDF/XPS/Images, you can only get the first 3 pages of PDF/XPS/Images. You would need to upgrade to Commercial Edition of Spire.XLS to

For the latest terms, check out the Spire .NET website