Column Widths shrink unaccountably

[Simon Rodwell]

Column widths have all automatically shrunk in all my spreadsheets.  Has anyone else experienced this?  I'm not sure what I've done or how to recover from it, so I'd be grateful for a pointer please.

[#2]

Looks like you have the same problem as described here: https://techcommunity.microsoft.com/t5/Excel/Excel-worksheet-looks-squashed-when-it-opens/m-p/215298...
Do you have screenshots of what it is supposed to look like and what it looks like now?