Strange
error, hmm !!
When
you enable a scheduled data refresh on the workbook, you receive the following
error message from the SQL Server Analysis Services instance:
Error Code: 3241607174
A connection corresponding to the embedded PowerPivot data was not
found in the Excel workbook, file File Name .
If
you wanna resolve this issue then please convey MILLION THANKS to Microsoft as
they have already published an article on this: