Home : File Types : XLL File

.XLL File Extension

File TypeExcel Add-In File

3.1 (17 Votes)
CategoryPlugin Files

What is an XLL file?

Contains extra functions, templates, or other tools that enhance the capabilities of Microsoft Excel; similar to a standard .DLL file (Dynamic Link Library), but is specifically written for MS Excel.

Open over 300 file formats with File Viewer Plus.
Programs that open XLL files
Updated 2/16/2007

About XLL Files

Our goal is to help you understand what a file with a *.xll suffix is and how to open it.

The Excel Add-In file type, file format description, and Mac and Windows programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

If you would like to suggest any additions or updates to this page, please let us know.