Convert.Guru

XLL Converter

Convert XLL files online for free


Drop or upload your .XLL file

How to convert your XLL file

  1. Click Select File above, and choose your XLL file.
  2. You'll see a preview.
  3. Click the "Convert file to..." button to save your file in the format you want.


Convert XLL to another file type

The converter easily converts your XLL file to various formats—free and online. No VSCode or extra software needed.

  • XLL to DLL
  • XLL to SO
  • XLL to DYLIB
  • XLL to BUNDLE
  • XLL to PLUGIN
  • XLL to XPI
  • XLL to CRX
  • XLL to SAFARIEXTZ
  • XLL to APPEX
  • XLL to KEXT
  • XLL to SYS
  • XLL to DRV

Convert a file to XLL

The converter also works in reverse, allowing you to convert your file into the XLL file type—in the best quality.

  • LV2 to XLL
  • DYLIB to XLL
  • VST to XLL
  • AAX to XLL
  • DRV to XLL
  • TDE to XLL
  • LADSPA to XLL
  • BUNDLE to XLL
  • AU to XLL
  • DLL to XLL
  • RTAS to XLL
  • SO to XLL

About XLL files

XLL files are Microsoft Excel add-in files that are used to extend the functionality of Microsoft Excel. XLL files are written in C or C++ and contain functions, macros, and dialog boxes that can be used to add features to Excel. XLL files can be used to create custom functions and macros, as well as to add user-defined dialog boxes and menus to Excel. XLL files are not compatible with other spreadsheet programs, and can only be used with Microsoft Excel.

In order to convert XLL files, users can use software such as Microsoft Excel or OpenOffice. XLL files can be converted to other file formats such as XLSX, XLS, CSV, and TXT. However, it is important to note that some features of the XLL file may not be preserved in the conversion process. Additionally, XLL files can be difficult to convert due to their complex structure and the lack of support for XLL files in other programs.

Due to the challenges associated with converting XLL files, it is recommended that users use the free and easy online website Convert.Guru to convert XLL files. Convert.Guru offers a fast and reliable way to convert XLL files to other formats, such as XLSX, XLS, CSV, and TXT. Additionally, Convert.Guru offers a variety of other features, such as the ability to edit and preview the converted file before downloading it.


The XLL Converter Story

The history of Convert.Guru began more than 25 years ago in California, when Tom Simondi published the most comprehensive database of file formats on his website. Before that, Tom had worked on Space Shuttle development at the Air Force Systems Command’s Space Division in Los Angeles. He is known as one of the top programmers of the late 1980s.

When Microsoft integrated Tom’s Filext database into Windows XP, it became the leading platform for analyzing and processing file types and formats.

Today, we use the latest technologies to analyze, process, and convert one of the world's largest collections of file formats. We are committed to developing the best XLL converter by continuously improving quality, usability, and reliability.

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