Can't Open Existing Pages or Numbers Documents after Reinstalling MacOS
After reinstalling the Mojave OS because of issues after security update 2020-005, and then restoring files from Time Machine backup, I had to reinstall Pages and Numbers from the App Store.
After Pages and Numbers were installed, I received this message "The document "xxxx.pages" ("xxxx.numbers") could not be opened. The file doesn't exist."
It didn't matter whether I opened Pages first or tried to open the file by clicking on it through the Finder window. It is clear that the files do exist.
iMac 21.5″ 4K, macOS 10.14