Convert PPSX to ODP
Free, fast PPSX → ODP. No watermarks, no sign-up.
How to convert PPSX to ODP
1. Upload PPSX
Drop your PPSX file into the converter above.
2. Confirm ODP
Output is already set to ODP. Adjust only if you need to.
3. Download
Convert and download your ODP file instantly.
Format Details
PPSX
PPSX is the modern Open XML-based equivalent of the legacy PPS format, introduced with Office 2007. Like PPS, a PPSX file opens directly in slideshow mode, bypassing the editing interface, which is ideal for distributing polished presentations. PPSX uses the same compressed XML format as PPTX but with the presentation-mode-first file association behavior.
presentationODP
ODP (OpenDocument Presentation) is the open standard presentation format developed by OASIS, used natively by LibreOffice Impress and Apache OpenOffice Impress. It stores slides, speaker notes, animations, media, and custom formatting in XML compressed within a ZIP archive, ensuring portability and long-term accessibility. ODP is a fully open, non-proprietary alternative to PowerPoint formats and supports bidirectional conversion with PPTX.
presentationConverting PPSX to ODP: what actually changes
PPSX to ODP is one of the conversions this site performs, but the two formats are not interchangeable containers. Here is what the file keeps, what it loses, and how to get a result you can use.
What .PPSX and .ODP each hold
.PPSX is a presentation format built for showing slides in a talk or meeting, storing slides, notes and embedded media. .ODP is a presentation format built for showing slides in a talk or meeting, storing slides, notes and embedded media. Converting between them is a decision about which of those two jobs the result needs to do.
What changes in the conversion
Both files belong to the presentation category, so this is a like-for-like repackage: the same kind of content, stored in a different container. What changes is how .ODP encodes slides, notes and embedded media — not what the file is about.
When this conversion is the right one
Reach for .ODP when the software, device or platform you are sending to expects it — the content is the same presentation, only the packaging differs. The reverse direction works the same way, so you can always convert back from .ODP to .PPSX using the same tool.
Tips for a clean PPSX to ODP conversion
Start from the original file
Convert the .PPSX you started with, not an earlier .ODP output. Every extra round trip costs quality and can accumulate formatting drift.
Check the real type, not the extension
Application/vnd.openxmlformats-officedocument.presentationml.slideshow becomes application/vnd.oasis.opendocument.presentation. If a file was renamed rather than converted, it will fail to open — rename it back to its true extension before uploading and the conversion will recognise it.
Keep the output next to the original
Save the .ODP file alongside the source rather than replacing it. Having both means you can try a different target later without hunting down the original again.
Limits worth knowing
Uploads are capped per file (30 MB, or 100 MB for video) and processed temporarily — nothing is kept as a permanent copy. For huge presentation files, split or compress the source first.
Frequently Asked Questions
How do I convert PPSX to ODP?
Upload your PPSX file on Convertek, select ODP as the output format, then click Convert. Your ODP file will be ready to download instantly.
Is the PPSX to ODP converter free?
Yes. Converting PPSX to ODP on Convertek is completely free with no watermarks. Fair upload limits apply (typically 30 MB per file).
Is my file kept after conversion?
No. Files are processed temporarily and not stored permanently. Converted downloads are available only in your browser session.
What is the difference between PPSX and ODP?
PPSX and ODP are different file formats with distinct use cases. Converting between them lets you use your file in software or workflows that require the ODP format.