Getting warning symbol after rendered SSRS report to excel file while opening

[Ranjithkumarg]

Hello

In our application, while trying to open the report we are getting below warning message.

"we found problem with some content in "excelfilename.xlsx". do you want us to recover as much as we can? if you trust source of this work book click yes"


we have build the application using visual studio .net and ms sql server & reporting services.



Note:- the same report we are able to generate without warning message from report manager after rendered to excel file.


Thanks in advance

Ranjith