1087 Microsoft Project Export File 4.0 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. Text 165 Georgia Tech Research Institute / Georgia Tech Research Institute 21 Apr 2011 Submitted by Georgia Tech Research Institute; v.120- New description added as part of PRONOM Research Week 2024. Submitted by Brigham Young University. 03 Jan 2025 application/x-project MIME fmt/342 PUID mpx File extension 473 Microsoft Project Export File 4.0 Header: (MPX) ; list separator (e.g. a comma or semicolon), The name and version of the program used to create the MPX file; list separator; the version of MPX format that the file uses (4.0 ), if list separator is ;, version may be 4,0. 1 Absolute from BOF 0 4D5058(2C|3B){1-50}(2C|3B)34(2C|2E)30