A couple of days ago, I learnt here how to change 'Module1', 'Module2' etc to meanigful names. I the painstakingly spent an hour or two renaming and also re-organising (moving code from one module to another, grouping like macros, etc). I've used Excel 365 since then but only tonight have I used Alt+F11 and looked at the modules under Personal.xlsb. I'm dismayed to find none of my changes now shown. In File Explorer there is no 'previous version' available, nor in the Recycle bin. Is there anything else I can try please?

And can anyone suggest what might have happened to cause this? Probably user error of some kind, but no warning?

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Terry, East Grinstead, UK