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SIT SITX
File conversion

Convert SIT to SITX

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Is it possible to convert SIT to SITX?
Yes - SIT converts to SITX.

StuffIt X is the newer StuffIt format; converting means re-stuffing the extracted files with a StuffIt product. Since StuffIt is discontinued and .sitx is even less supported, prefer ZIP. (db lists sit->sitx with software_count 3 - only the legacy StuffIt apps did this.)

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert SIT to SITX

Converting a .SIT file to .SITX lets you open the content in software that prefers the .SITX format, though some details may change compared with the original. The programs listed below open .SIT files and can save or export them to .SITX (or a closely related format). One of them is StuffIt Deluxe: Micro StuffIt Deluxe is a file compression software that supports all popular archive formats. Thanks to this program, the archived documents do not lose their….

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

Programs that convert SIT

StuffIt Deluxe
StuffIt for Mac
StuffIt Deluxe for Mac

About these formats

.SIT StuffIt Archive

A SIT file is a StuffIt archive -- the Mac equivalent of ZIP, used from the late 1980s into the 2000s for distributing Mac software. To open one on a Mac, use the free StuffIt Expander or…

Open .SIT details →
.SITX StuffIt archive file

A .SITX file is associated with StuffIt archive, a compressed file.

Open .SITX details →