When opening a Crystal Reports 2008 report in an earlier version and error message appears:
"This document could not be opened. It does not appear to be a Crystal Reports document. This document has the expected file extension (.RPT), but it seems to be corrupted."
The issue has been identified and tracked under ID ADAPT00754346. Reports created with embedded Flash objects cannot be opened by previous versions of Crystal Reports.
There is no file update to fix this issue.
CR2008 CR 2008 XIR3 XI R3 TITAN RN , 2378832 , KBA , BI-RA-CR , Crystal Reports designer or BusinessViews Manager , Bug Filed
Crystal Reports 2008 V0