This is my first try uploading a pptx file. It links to a Google doc PDF that shows figures. Not sure if this will be useful or whether PNG would be better. - Steve Koch

Won't open for me -- browser thinks the link "contains malicious code". - Bill Hooker

Changed it to be a figure. Prolly an area for feature upgrade: allow multiple files per "figure." - Steve Koch

As it stands now, you can get the PPTX file (if browser allows) from the "view history" tab on the figure. But that's not obvious. - Steve Koch

OK, I'll get to work on it, give me a few days :) I wonder whats setting off the malicious code? Did this actually embed the file for you? - science3point0

For me, I got the "malicious code" warning too, but it looks like a standard warning for that file type, coming from MediaWiki. I was able to download the file just fine using Chrome and the PowerPoint to view. - Steve Koch

A possible solution would be to encourage people to upload graphical figures (e.g. PNG) and have a box on the figure creation form that allows also optional uploading original figure file. (B) Or, if possible, could have a preview ability for PPTX and other files, based on Zoho or Google Docs? I have no idea if that is possible, but it was pretty slick the Zoho preview on the data set I uploaded! - Steve Koch