Fix GeneralExceptions being thrown when multiple workbook are opened
Sometimes when more than one workbook is opened, then a:
GeneralException: There was an internal error while processing the request
is thrown during various office-js operations.
See https://github.com/OfficeDev/office-js/issues/771 for details.
I know there's a workaround:
https://docs.microsoft.com/en-us/office/troubleshoot/excel/force-excel-to-open-new-instance
but it's impossible to force clients to use it.

Thanks for reporting this issue! The bug is now in our backlog and it’s under investigation, we will let you know the update once we have
4 comments
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extremeandy commented
This is also affecting us, please provider an update
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Anonymous commented
Any informations about fix? When it will be done?
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Sk Sadab Kadir commented
Hi Team,
we are also facing same issue, please let us know if the fixed has been done or any timeframe planned for this fix -
Michał, thanks for reporting this issue! We are aware of this and the bug is now under investigation. We’ll let you know when this is available.
(Edited by admin)