Convert PowerPoint slide shows (PPSX) online for free
The converter easily converts your PPSX slide shows to various formats - free and online. No Microsoft PowerPoint or or other Page Layout software needed.
To convert other file formats to the "Open XML Slide Show" file type, you need software like Microsoft PowerPoint or a similar tool.
The .PPSX file is a PowerPoint Open XML Slide Show created by Microsoft. Introduced with Microsoft Office 2007, it uses the Office Open XML standard, which stores presentation data, text, images, and embedded media in a compressed ZIP archive. Unlike standard presentation files, a .PPSX file is programmed to open directly into full-screen presentation mode rather than the standard editing interface of Microsoft PowerPoint.
Despite its convenience for presenting, the .PPSX format has notable disadvantages. It is designed purely for viewing, which frustrates users who need to make quick edits or extract specific slides. The files can easily exceed 100MB if they contain embedded high-resolution videos or uncompressed audio. Furthermore, .PPSX files are not natively supported by web browsers and require either a heavy desktop application, a paid Microsoft 365 subscription, or upload to a cloud service to open. Complex transitions, animations, and embedded fonts also frequently break or distort when opened in third-party software like Google Slides or Apple Keynote.
To bypass these limitations, convert the file. For easy sharing, archiving, and printing without format distortion, convert to PDF. If you need to actively edit the slides and text, convert back to PPTX. For universal playback on smartphones, smart TVs, or web browsers without requiring presentation software, convert to a standard video format like MP4. Drag and drop your file to analyze and convert it - free, online, and without installing software, right here on convert.guru.
Use Convert.Guru to open and convert your PPSX file.
Users also converted PPSM, CBT, PPX, PPS, PSX, LMS, PSK, PPTX, PSP, PSS, MP4, PBIX and SDOCX files.
If you want to convert PPSX file to MP4, JPG, MP3, JSON, YAML, YML or TOML, you can use Microsoft PowerPoint or similar software from the "Full-Screen Slide Show Presentation" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to PPSX, try Microsoft PowerPoint or another comparable tool in the "Full-Screen Slide Show Presentation" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our PPSX converter.