If you are a content author and are looking to upload PowerPoint content into Brainshark, you will be able to upload .PPT and .PPTX files in Brainshark successfully.
Currently, .PPTM files, and .PPSX files are not supported at this time. If you would like to request this functionality, I recommend visiting our Product Suggestion forum. For information on how to submit a product suggestion, please see the following article: How to Submit a Product Suggestion
If you need additional assistance, please contact Support.