I am working on a WOPI integration project to enable web based viewing / editing of office documents using office online server. After configuring MS-WORD and PPT files are working fine but facing problem while opening Excel file online. From WOPI logs I get the following exception.
Exception:Unhandled Exception: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.InvalidOperationException: This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.
at System.Security.Cryptography.SHA256Managed..ctor()
After getting this exception I did some research online and get one solution.
Solution-Link:https://www.ibm.com/support/pages/implementation-not-part-windows-platform-fips-validated-crytographic-algorithms-error-launching-controller
After applying the above solution also I am unable to open the Excel file online. Please find the attached logs and please provide solution on the same.88910-excelservicesecswatchdog.txt
Thanks in advance