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What is a .pp file?

A .pp file is a PowerProject (version 7). This one is a specialist format without an obvious everyday home. Confusingly, this extension has been used by 7 different formats over the years — they're all listed below.

This extension has been used by more than one format

7 different formats have claimed .pp over the years, so two files with the same extension aren't necessarily the same kind of thing.

How to open a .pp file

  • The program that created it is by far the most reliable way to open it.
  • On Windows, use a hex viewer or the free TrID tool to identify what the file really is.
  • On Mac or Linux, running `file yourfile` in the terminal identifies most formats instantly.

The registry records this extension against PowerProject, PowerProject, PowerProject and others, so software from that family is the most likely match.

How to convert a .pp file

  • Identify the file first, then look for an export or Save As option in whatever program can read it.

The technical record

For archivists, developers and the merely curious: these are the PRONOM registry entries for .pp.

Format nameVersionMIME typePUID
PowerProject7fmt/511
PowerProject8fmt/512
PowerProject9fmt/513
PowerProject10fmt/514
PowerProject11fmt/515
PowerProject12.0.01fmt/516
PowerProject12.0.02+fmt/517

Got another one?