This is an caused by incompatible Adobe Add-in.
I suggest you go to Tools > Templates and Add-ins... > check whether there are saveasadobepdf and linkCreation.dotm. If so, please delete them.
Then please close Excel, and then delete "linkCreation.dotm" from ~/Library/Group Containers/UBF8T346G9.Office/User Content/Startup/Excel/
. (Please note, to get hidden files, in Finder press Shift+Command+L to take you to the library folder, then drill into the folders.)
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