Cannot Save The Presentation

[Grimooo3]

Hello. Glad to join the community!
I was given a PowerPoint(PP) presentation to do a simple changes. But PP won't let me save it.
After saving the file this error message occurred:
File format not valid
Also
PowerPoint cannot save the file
The version of office is MS PP 2013
Is anybody able to help with this please?

[chelle7272]

Possibly it's corrupted?
Some advice here:
https://www.yodot.com/ppt-repair/error-when-saving-powerpoint.html

[Guilbert53]

Do a "Save As" and see what file type it is trying to save it as. (ppt etc)

Try other file types.

Also maybe try Save AS and save it as a different name.

[tferrell]

Save the file to new PowerPoint presentation
After editing the document and error pops out, click cancel for saving option -> Click on Start and place the cursor at All Programs / Programs tab -> Choose Microsoft PowerPoint and open it as second window -> Go to View and click on Slide Sorter -> Now, switch to the presentation file that is opened and go to Slide Sorter under View menu -> go to Edit and click for Select All -> again go to edit and select Copy -> Switch to the freshly opened PowerPoint lane -> click on edit and Paste option -> Save this new document with different name. You can find more detailed information on how to fix PowerPoint errors here: http://www.powerpoint.repair/