1) In the attached file
2) C#
3) Spire.XLS Pro Edition version 11.8
4) Windows 10 64-bit region setting Japan
5) WebAPI .Net 8
Open the excel file created from spire.xls, when I enable protected view in excel I can see the chart. Otherwise you won't be able to see it. Please let me know if there is any solution as I want to see the complete file and do not need to enable protected view in excel