StuffIt X
Unknownarchive
The Stuffit X Archive format was developed in 2002 by Aladdin Systems, offering further compression methods and encryption options over the original Stuffit Archive format.
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| Extensions | .sitx |
|---|---|
| MIME types | application/x-stuffitxapplication/x-sitx |
| Signatures | 5374756666497421 at byte 0 (StuffIt X) |
| PRONOM | fmt/399 |
| Wikidata | Q3459655 |
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From Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.