We are aware of the issue the Sophos Endpoint Agent antivirus ROP exploits in Excel.
Please retest the issue after providing an exception in your Antivirus program.
You can find more information at the following links:
https://community.sophos.com/products/intercept/f/feedback/79954/rop-exploit---excel
https://support.home.sophos.com/hc/en-us/articles/115005499966-Setting-scan-exceptions
https://support.sophos.com/support/s/article/KB-000034359?language=en_US