I am designing lectures in Powerpoint (the latest released version this year) for a class I'm teaching soon, and created filenames based on the date that I will give them:
But if I open 9/22.pptx
(or any one of the other files) in Powerpoint, it does not preserve the filename:
(See that the 9/
part was removed.)
Is there a reason for this? If I open the presentation in Keynote (the latest version), the name is preserved:
Best Answer
From Microsoft's Known Issues with PowerPoint 2011:
Check your version of PowerPoint for updates to see if this addresses or fixes the issue.
Otherwise, change the filename to include a character that is allowed such as "-". (e.g.: 9-22)