How to Open an Excel File in VB.NET without Interop | IronXL

Updated:July 12, 2026

Reading an existing spreadsheet on a server should not require Microsoft Excel to be installed.

This video walks through opening and working with existing Excel files in VB.NET using IronXL. It covers loading an XLSX spreadsheet, accessing worksheets, reading cell values, and modifying and saving the file programmatically, with no Interop and no Excel installation on the machine. That makes it a good fit for reporting systems, automation tools, and internal business applications running on servers. The same approach reads and writes spreadsheet data from VB.NET with only a few lines of code.

Read Full Article: Open Existing Excel File in VB.NET Without Office Installed Using IronXL

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