How to open .PPS files on Windows
To open .PPS files on Windows, open Microsoft PowerPoint, then use File > Open to select the .PPS file (this can bypass incorrect “Open with” associations).
Step-by-step instructions
- Open Microsoft PowerPoint, then use File > Open to select the .PPS file (this can bypass incorrect “Open with” associations).
- If it opens directly as a show and you need to edit, in PowerPoint try opening it from within the app rather than double-clicking the file.
Common issues
It opens in slide show mode but I need to edit
PPS is meant to start as a slide show by default, even though the underlying content is similar to a PPT presentation.
- Open Microsoft PowerPoint first, then use File > Open to open the .PPS (instead of double-clicking it).
- If needed, save a copy in an editable format (for example, save as .PPT or .PPTX) from within PowerPoint.
The file won’t open or reports corruption
Legacy binary PowerPoint files can be truncated during download/transfer or contain structures a viewer can’t parse.
- Re-download or re-copy the file (avoid email clients or sync tools that may have altered the attachment).
- Try opening it in a different PowerPoint-compatible app or in a newer version of PowerPoint, then re-save/convert to .PPTX.
Wrong application opens it or the file type is not recognized
File associations and MIME mappings can be inconsistent (especially on servers or Linux desktops), and .pps may be handled like .ppt.
- Use “Open with” to explicitly choose your presentation app and set it as the default for .pps.
- On Linux, update the shared-mime-info database and re-login/restart the file manager so the new mapping is applied.
Web server downloads/labels it as .PPT instead of .PPS
Some server configurations don’t distinguish .pps separately and may map it to the general PowerPoint MIME type, causing it to be treated as .ppt.
- If you manage the server, add or adjust the content-type mapping for .pps (Microsoft Support discusses IIS behavior and suggests application/vnd.ms-pps in that context).
- If you’re an end user, keep the original extension and open it from inside PowerPoint; don’t rely on the browser’s inferred type.
Still can’t open your .PPS file?
Recover a deleted or lost .PPS file
If the file was deleted by mistake or the drive was formatted, data recovery software may be able to get it back. Stop writing to that drive right away, because new data can overwrite what you want to recover.
Windows software that recovers deleted or lost files from PCs and external drives such as HDDs, SSDs, USB drives and memory cards, after deletion, formatting or a crash.
Wondershare RecoveritWindows and Mac software that recovers deleted or lost files from computers and external drives such as HDDs, SSDs, USB drives and SD cards.
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Security note
Treat .PPS as a PowerPoint binary document: it can contain active content (for example, macros in Office documents, depending on how it was authored), so only open files from trusted sources.