Microsoft Project Export File 1.0

Writable

other

The Microsoft Project Export file or Microsoft Project Exchange file format is for earlier version of Microsoft Project to exhange project data with other Project Management software. Discontinued with Project 2000.

Identify it

Extensions	`.mpx`
MIME types	`application/x-project`
Signatures	`4d5058` at byte 0 (Microsoft Project Export File 1.0)
PRONOM	`x-fmt/232`
Wikidata	`Q48623384`

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Open it

MPXJOpen sourcereads and writes · GNU Lesser General Public License, version 2.1
Microsoft Projectreads and writes · proprietary license

Convert it

No conversion recorded. One of the tools above may export it; search for a chain.

Sources

PRONOM x-fmt/232
Wikidata Q48623384

From PRONOM, Wikidata. Updated 2026-10-20.

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