Question: can't open a file
Macbook Pro Sierra 10.13.1
Trying to open a spreadsheet file for numbers. It says "can't opened right now. Then it gives me the option to restore it from an older version. Well, there is no older version.
I closed the file and chose not to save it but instead I said to revert changes. At that point it had a hickup.
Numbers version 4.3.1
MacBook Pro, macOS Sierra (10.12.5)