Migration from Office Automation to Syncfusion® XlsIO

24 Jul 20261 minute to read

Why Syncfusion®’s XlsIO over Office Automation?

  • Office automation can be extremely slow when deployed on a server, and it is highly unstable when multiple Excel objects are instantiated concurrently on the server. XlsIO is designed to work under these conditions as a 100% native .NET component, so it can easily handle concurrent requests from multiple users.
  • XlsIO has a very intuitive and easy-to-use object model. You can create richly formatted spreadsheets in just a few minutes.
  • Essential® XlsIO has a royalty-free licensing model, so you do not need a Microsoft Excel license on the server, unlike Office Automation.

Migrating from Microsoft Interop to Syncfusion® XlsIO is straightforward. The following section lists common Excel features. Each topic links to a dedicated migration guide and includes:

  • A description of the feature.
  • Interop and XlsIO code (in both C# and VB.NET) for comparison and easy migration.