Hello,
I understand the issue faced by you by looking at the files shared. However, cannot comment on the cause of the issue until we have a look at the report and it’s design.
I would request you to please share your report xml along with the datasource with us.
Please try exporting using the latest build of C1Report and see if you still face the same issue. The latest build can be downloaded from the following link :
http://prerelease.componentone.com/dotnet20/c1report/2013-T3/
Let us know your observations.
Regards,
Mohita