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*Details: File format summary



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Name Microsoft PowerPoint for Macintosh
Version 4.0
Other names  
Identifiers MIME:  application/
PUID:  fmt/179
Classification Presentation
Description Microsoft PowerPoint Presentation is a proprietary binary file format developed by Microsoft Corporation used to store presentation files created in the Microsoft PowerPoint presentation system. This record describes version 4 of .ppt file format for Macintosh, released in October 1994. Versions prior to version 4 of Microsoft PowerPoint also use .ppt as extension, however they are not compatible with each other. Microsoft made backwards compatibility an optional add-on after Office 2003 and appears to have removed it altogether in Office 2010.
Orientation Text
Byte order  
Related file formats None.
Technical Environment  
Supported until  
Format Risk  
Developed by Microsoft Corporation
Supported by None.
Source Digital Preservation Department / The National Archives
Source date 28 Sep 2009
Source description 08/2023 (v.113) - Description updated and MIME Type added. Internally researched.
Last updated 15 Aug 2023
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