Keynote file damaged and cannot be opened
I have a folder full of (about 60) Keynote files. They show up as Zero bytes, and cannot be opened. They are located (he said with a knowing look) in Dropbox.
MacBook Pro (M2 Max, 2023)
These files will be of no use as they do not contain any data.
Go to either the original Keynote files stored on the Mac or in a backup.