Error opening custom File Template in Modern View

New Contributor

Hi, i have a Document Library with an Custom xltx Template.

When i try to add a New Document in Modern View, Excel open's and and brings the following error:  









when i open the same custom template in old SharePoint experience, the file opens without Problems.

Was there any change in the update 1808 that could lead to this Problem in Excel?


thanks for any help.


0 Replies