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.ppt

High risk

Microsoft PowerPoint 97-2003 Presentation

PowerPoint's pre-2007 binary format. Still shared in government and large enterprises; macro-enabled variants need the usual caution.

MIME types

  • application/vnd.ms-powerpoint

Category

document

What opens this file

  • PowerPoint
  • LibreOffice Impress
  • Keynote
  • Google Slides

How to open by OS

Windows

  • PowerPoint, LibreOffice Impress.

Mac

  • Keynote, PowerPoint for Mac.

Linux

  • LibreOffice Impress.

Ios

  • PowerPoint Mobile, Keynote.

Android

  • PowerPoint Mobile, Google Slides.

Safety notes

  • ppt can run VBA macros. OLE-embedded external commands have been abused historically.

Common mistakes

  • Distribute as pptx or PDF instead of raw ppt — fonts and layout break on some reader versions.
  • If you don't need macros, don't ship a macro-enabled variant; use pptx.

Related extensions

References