Export to Excel not working

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/report-a-bug/export-to-excel-not-working/
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I've exported ABRP plans many times (through Share plan) to my Excel/Numbers application so that I could customize the work sheet. But stopped working today. Trying closing and reopening everything.