XLL File (What It Is and How to Open It) – Knowligent
XLL File (What It Is and How to Open It)

XLL File (What It Is and How to Open It)

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Summary by Lifewire • IT Magics on Youtube • Published 16 years ago

This article explains what an XLL file is and how to open it on your computer.

How do I fix the issue of file format or file extension not valid in Excel?

A file with the XLL file extension is an Excel Add-in file. These files provide a way to use third-party tools and features in Microsoft Excel that are not natively included with the software.

Excel add-ins are similar to DLL files, but they are created specifically for Excel.

XLL files can be opened with Microsoft Excel.