Solution to -old.ppta problem?
After moving my project files (.pptx, .ppta and .mp3) to a different drive my audio disappeared and a new .ppta file was created leaving my original renamed -old.ptta . I could see the file size was 300MB so my audio was still there. But how to get to it?
The only way I found to correct the problem was to not only remove the text "-old" but to rename both the .pptx and .ppta to a new name. For example...
Hope this works for you too.