Your email address belongs to a school and you are eligible for a free educational premium account.
Learn more

SIT - StuffIt Archive

What is a SIT file

SIT files are created by the Smith Micro StuffIt software. StuffIt is commonly used on Apple Mac computers to compress (or "stuff") different types of files. Nowadays, SIT files are not Mac-exclusive anymore and can be opened on computers running with the Windows operating system as well.

SIT was the first file extension used for files compressed using StuffIt. Newer versions of StuffIt use the SITX extension.

Here's a small, but not exhaustive list of programs that can open SIT documents:

  • Smith Micro StuffIt Deluxe (Windows & Mac)
  • The Unarchiver (Mac)
  • Incredible Bee Archiver (Mac)
  • ExtractNow (Windows)
Extension SIT
MIME type application/stuffit, application/x-stuffit, application/x-sit
Useful links