PPT to PPSX Converter

Select files for conversion or just drag and drop them to the upload area

How to convert PPT files to PPSX online?

Step 1.

Upload PPT-file

Click "Choose File" button to select a ppt file on your computer. PPT file size can be up to 50 Mb.
Step 2.

Convert PPT to PPSX

Click "Convert" button to start conversion.
Step 3.

Download your PPSX

When the conversion process is complete, you can download the PPSX file.


  • First you need to add file for conversion: drag and drop your PPT file or click the "Choose File" button. Then click the "Convert" button. When PPT to PPSX conversion is completed, you can download your PPSX file.
  • Document conversion is pretty fast. You can change PPT to PPSX in a few seconds.
  • Of course! We delete uploaded files immediately, and converted ones after 24 hours. No one has access to your files. File conversion (including PPT to PPSX) is absolutely safe.
  • Yes, you can use AnyConv on any operating system that has a web browser. Our PPT to PPSX converter works online and does not require software installation.

Information about PPT and PPSX file formats

Full name PPT - Microsoft PowerPoint Binary File Format PowerPoint Open XML Slide Show
File extension .ppt .ppsx
MIME type application/vnd.ms-powerpoint application/vnd.openxmlformats-officedocument.presentationml.presentation
Developed by Microsoft Microsoft
Type of format Presentation Document File
Description Microsoft PowerPoint up until 2007 version used a proprietary binary file format called PowerPoint Binary File Format (.PPT) as its primary format. In Microsoft Office 2007 the binary file formats were replaced as the default format by the new XML based Office Open XML formats. PPSX is a PowerPoint Open XML Slide Show - it is primarily designed to be non-editable and to simply playback the Powerpoint presentation. It differs from PPTX which allows for the file to be editable. The 'X' extension refers to Microsoft Office 2007, 2010 and 2012 which ZIP compress the file and is therefore different from the previous versions which were generally have larger file sizes.
Technical details The binary format specification has been available from Microsoft on request, but since February 2008 the .ppt format specification can be freely downloaded. PPSX are compressed and based on the ECMA-376 standard for Office Open XML. It supports Text, Images, Audio and Video and is stored in a zipped directory format which matches the OPC structure. Just like the PPTX format the PPSX format improves file sizing, data recovery and data management and allows for other applications to interact with it due to the XML structure.
Associated programs Microsoft Office, LibreOffice, Kingsoft Office, Google Docs. Apple Keynote, Microsoft PowerPoint, OpenOffice
Wiki https://en.wikipedia.org/wiki/Microsoft_PowerPoint#File_formats http://en.wikipedia.org/wiki/Microsoft_PowerPoint