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  • Is there a better alternative to File Extension Lookup?

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  • Is File Extension Lookup really the best app in Reference category?

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  • Will File Extension Lookup work good on macOS 10.13.4?

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The File Extension Lookup widget allows you to find out information about thousands of Mac and Windows file extensions, using the database.

If you come across an unknown file, you can look up information about the file type using the File Extension Lookup widget. Each file extension entry includes the name of the file type, the file format, a description of the file, and a list of programs that can open the file.

What's New

Version 1.3:
  • Redesigned for the new


Mac OS X 10.4.3 or later

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File Extension Lookup User Discussion

5 1


Current Version (1.x)


Downloads 4,824
Version Downloads 802
License Free
Date 06 Feb 2012
Platform OS X / PPC 32 / Intel 32
Price Free
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