File Type StuffIt Archive IconStuffIt Archive
File Format Proprietary (Smith Micro)
Usage Open manually
Popularity ★ ★ ★ ★ ☆  Common

A SIT file is a compressed file that has been "stuffed" with the StuffIt file compression utility. It must be decompressed with StuffIt Expander in order to view the contents of the archive.

IMPORTANT: Newer versions of the StuffIt program save compressed archives in the StuffIt X format, which uses the .SITX extension.

Info About Smith Micro StuffIt Deluxe

StuffIt Deluxe is a popular file compression and expansion utility. It was originally developed for the Mac, but is now available for both Macintosh and Windows platforms. The program supports the native SIT and SITX formats, as well as many other compressed file types. StuffIt Deluxe includes file archiving and compression tools, while StuffIt Expander can only decompress archives.

Open With

IconSmith Micro StuffIt Deluxe

IconSmith Micro StuffIt Expander for Windows



IconSmith Micro StuffIt Deluxe Mac

IconSmith Micro StuffIt Expander for Mac

IconIncredible Bee Archiver

Published March 27, 2010
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Information from the PC File Extensions Reference