If a style's name contains "##" - the style gets corrupted

[Drugoy]

Just try to create any style, save it, and give it a name like ## or ##1 and re-open it.

[Drugoy]

I can't even delete it now.

[grssam]

:laughing: while saving it, all the invalid characters got replaced by nothing, so basically your sheet name should have reduced down to '1' , but it seems that it reduced to '' thus giving the details of the directory in the file contents.