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.XLL File Extension

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File TypeExcel Add-In File

DeveloperMicrosoft
Popularity
2.7 (3 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryPlugin Files
FormatBinary

Binary

This file is saved in a binary format, which requires a specific program to read its contents.

Definition

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.

Programs that open XLL files
Windows
Microsoft Excel 2016
Mac
Microsoft Excel 2016
Updated 2/16/2007

FileInfo - The File Extensions Database

This page contains information about the .XLL extension and its known file associations. Our goal is to help you understand what an XLL file is and how to open it.

The Excel Add-In file type, file format description, and programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and therefore do not publish any information we have not verified.

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