What is a .odp file?
OpenDocument Presentation · Document · OASIS · 2005
ODP is the OpenDocument presentation format, the open standard used by LibreOffice Impress. Like other ODF files it is a ZIP package of XML, so it starts with the ZIP signature.
What is a .odp file used for?
An .odp file bundles the slides, styles and media of a presentation as XML inside a ZIP, following the ISO-standardised OpenDocument format. Rename one to .zip and you can browse its parts.
It is the native format of LibreOffice Impress and is supported by most office suites, making it a vendor-neutral alternative to PowerPoint's PPTX.
What opens a .odp file?
The .odp format opens in the following apps, grouped by operating system. If one app does not work, try another from the same list.
Windows
- LibreOffice Impress
- Microsoft PowerPoint
- OnlyOffice
macOS
- LibreOffice Impress
- Keynote
- Microsoft PowerPoint
Linux
- LibreOffice Impress
- OnlyOffice
Web
- Google Slides (import)
Open a .odp file step by step
- Confirm the file really is a .odp. Drop it into the WhatFileType identifier, which reads its signature in your browser without uploading anything.
- On Windows, open it with LibreOffice Impress or Microsoft PowerPoint.
- On Mac, use LibreOffice Impress or Keynote.
- On Linux, try LibreOffice Impress or OnlyOffice.
- Still stuck? Convert the .odp to pptx, which opens more widely.
Why can't I open my .odp file?
Almost always because no installed app understands ODP. Install one of the apps above, or convert the file to a format your existing software already reads. If double-clicking opens the wrong program instead of nothing at all, the file association is set to the wrong app rather than the file being broken.
The other possibility is that the file is not really a .odp at all. Drop it into the file identifier to check it by its bytes instead of its name. Nothing is uploaded.
How to convert a .odp file
You can convert a .odp file to pptx, pdf, ppt using a conversion tool or the export menu of an app that opens it.
What is the .odp file signature (magic bytes)?
A .odp file starts with the hex bytes 50 4B 03 04, which read as PK.. in ASCII. Programs identify ODP by those bytes, not by the filename, so a renamed file still gives itself away.
These are the documented signatures for ODP. For a full breakdown, see the ZIP file signature page.
| Hex signature | Offset | ASCII | Note |
|---|---|---|---|
| 50 4B 03 04 | 0 | PK.. | ZIP package (PK..) |
See the full magic-numbers reference for every format.
Frequently asked questions
What is a .odp file?
ODP is the OpenDocument presentation format, the open standard used by LibreOffice Impress. Like other ODF files it is a ZIP package of XML, so it starts with the ZIP signature.
How do I open an .odp file?
LibreOffice Impress opens it natively. Modern PowerPoint and Keynote also import .odp, and can convert it to PPTX or PDF.
What is the difference between ODP and PPTX?
Both are ZIP-of-XML presentation formats. ODP is the open OpenDocument standard (LibreOffice); PPTX is Microsoft's. Most suites read both.
Is ODP a ZIP file?
Yes. Like all OpenDocument files it is a ZIP package, so it starts with the ZIP signature and can be opened as an archive.
Related formats
Sources
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