POTX to PPSX Converter
Convert POTX to PPSX online for free. Fast, secure, and high-quality conversion with no sign-up or software required.
Maximum file size is 1GB
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Three steps to your converted file
Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.
Upload your file
Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.
Choose an output format
Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.
Convert & download
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What is a POTX file?
The POTX file is the standard XML-based template format for Microsoft PowerPoint 2007 and later, standardized under ECMA-376 and ISO/IEC 29500. It uses ZIP compression to package XML data structures describing slide layouts, themes, and master slides. Unlike POTM, the POTX architecture strictly prohibits the inclusion of VBA macros, making it a safer alternative for distributing design standards without security risks.
How to open a POTX file
POTX files are the default template standard for modern presentation software. Microsoft PowerPoint provides full native support. Alternatively, users on non-Windows platforms can utilize Apple Keynote (macOS), Google Slides (web-based), or LibreOffice Impress, all of which accurately interpret the OOXML schema for editing and playback.
POTX Technical Info
- Full Name
- PowerPoint Open XML Template
- Developed By
- Microsoft
- Initial Release
- 2007
- MIME Type
- application/vnd.openxmlformats-officedocument.presentationml.template
What is a PPSX file?
The PPSX (PowerPoint Open XML Slide Show) format is a presentation file introduced by Microsoft with Office 2007, adhering to the Office Open XML (OOXML) standard (ISO/IEC 29500). It acts as a read-only slideshow version of the PPTX format, launching directly into presentation view rather than the editing interface. Structurally, it is a ZIP archive containing XML documents that define slide layouts, themes, and content, but it explicitly excludes the vbaProject.bin part found in macro-enabled variants, ensuring it cannot execute code.
How to open a PPSX file
Native support for PPSX is built into Microsoft PowerPoint 2007 and newer versions on Windows and macOS. To edit a PPSX file rather than view it, users must open PowerPoint first and select the file via the 'Open' menu. Alternative software includes LibreOffice Impress, Google Slides, and Apple Keynote, all of which can parse the OOXML structure, though some transition animations may not render identically to the Microsoft engine.
PPSX Technical Info
- Full Name
- PowerPoint Open XML Slide Show
- Developed By
- Microsoft
- Initial Release
- 2007
- MIME Type
- application/vnd.openxmlformats-officedocument.presentationml.slideshow
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Every POTX to PPSX conversion runs on our servers, so your device stays fast and the output quality stays intact.
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Developer API
Convert POTX to PPSX via API
Automate POTX to PPSX conversions in three steps: create a job, upload your file, then poll for the result.
# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"tag": "potx-to-ppsx",
"tasks": {
"upload-file": {
"operation": "import/upload"
},
"convert": {
"operation": "convert",
"input": "upload-file",
"output_format": "ppsx"
},
"export-result": {
"operation": "export/url",
"input": "convert"
}
}
}'
# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.potx
# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
-H "Authorization: Bearer YOUR_API_KEY"Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.