Error Uploading PowerPoint Files into Adobe Connect
If you are having problems uploading PPT or PPTX files into Adobe Connect, check that the file name extension is correct.
If you have a PPTX file that is named with .PPT extension, then it generate an error when uploading to Adobe Connect. The opposite is also true: uploading PPT files that have .pptx extension will cause an error when uploading.
To check if a PowerPoint file should be named with PPTX or PPT extension, a quick way to verify is to rename the file to have .ZIP extension, and if you can open the file as a ZIP archive and view the internal contents, then it is a PPTX file. If you cannot view internal contents, then it is a PPT file.