DevConverter is an online document and presentation converter. Amongst many others, we support PDF, PPTX, PPT, ODP. Thanks to our advanced conversion technology the quality of the output will be exactly the same as if the file was saved through the latest Microsoft Office 2019 suite.
PPSX files are slideshows created with Microsoft PowerPoint 2007 or higher. These slideshows can be viewed using PowerPoint or the free PowerPoint Viewer. PPSX files are not editable.