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What are SITX files and how to open them

Are you having problems opening a SITX file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your SITX files.

What is a SITX file?

A .SITX file is a StuffIt X compressed archive file.

Files that contain the .sitx file extension are normally associated with the Smith Micro StuffIt file archive and compression software utility.

Versions 7.0 and later of the StuffIt software program create and save compressed file archives with the .sitx file extension. These file archives allow a user to take a large file or a batch of files and compress them into a smaller compressed archive file to save disk space and make it easier to distribute the files via the Web.

The SITX file format uses a proprietary ATOM compression technology, which allows for higher compression rates than the traditional SIT file format. SITX files may also be encrypted for added file security.

How to open SITX files

We have identified one SITX opener that is compatible with this specific type of SITX file.

Programs that open StuffIt X compressed archive files

Last updated: February 24, 2023

Various apps that use files with this extension

These apps are known to open certain types of SITX files. Remember, different programs may use SITX files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Express ZipExpress ZipUser submitted
PowerDeskPowerDeskUser submitted
Adobe IllustratorAdobe IllustratorUser submitted
Adobe PhotoshopAdobe PhotoshopUser submitted
SitExpanderSitExpanderUser submitted

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about SITX file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.