.XLL File Extension
Microsoft Excel Add-in
The “.XLL” file extension is associated with Microsoft Excel. XLL files are Excel Add-In files that contain additional functionality and
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February 13
AllFileinfo.com
The File Format Database
Search over 10,000 file extensions and software programs.
Developer: Microsoft
February 13
.DIF File Extension
Data Interchange Format
“DIF file extension: Learn about this file format used for data interchange and data export/import in a concise manner.”
February 13
.CONTACT File Extension
Windows Contact File
“Unlock the potential of .CONTACT file extension – Learn its uses and how it enhances your digital experience.”
