A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Hi Alex,
Thanks for posting in our community.
This method is correct which can maintain the conditional formatting without the rules by copying the table to a PPT or DOC and back again to the Excel. And, based on my knowledge, if in Excel for mac you can use Command+C and Command+V to copy and paste the cells or tables including the formats. So that I would like to suggest you check whether the settings of Shortcut is changed.
To custom shortcut keys, please refer to Create a custom keyboard shortcut for Office for Mac.
Regards,
Clark