Microsoft PRX File
Unknownother
PRX files are media encoding configuration preset files used by Microsoft products including Microsoft Expression Encoder and Windows Media Encoder.
Identify it
| Extensions | .prx |
|---|---|
| MIME types | application/octet-stream |
| Signatures | fffe3c005000520058003e at byte 0 (Microsoft PRX) |
| PRONOM | fmt/1043 |
| Wikidata | Q50419827 |
Not sure your file is this? Identify it from its first bytes, in your browser.
Open it
Convert it
No conversion recorded. One of the tools above may export it; search for a chain.
0Sources
From PRONOM, Wikidata. Updated 2026-10-20.