Hi All!
In 8.4 i didnt have the problem.
After upgrading to 10.1 and after some days i have the following problem.
When i try to export some reports in excel i get the following errors. I can run the report ok in html i can export to pdf (even if they are 999 pages), but in excel i get the following:
 
 
   	An application error has occurred. Contact your Administrator.
 
   	Details 
CCLAssertError:0:Fatal: CCL_ASSERT_NAMED(!m_secureFileStream, "RSDocIo::read() not supported when secured data is being written");RSV-SRV-0042 Trace 
back:RSReportService.cpp(866): CCLAssertError: CCL_CAUGHT: RSReportService::process()RSReportServiceMethod.cpp(259): CCLAssertError: CCL_RETHROW: 
RSReportServiceMethod::process(): asynchWait_RequestRSASyncExecutionThread.cpp(789): CCLAssertError: 
RSASyncExecutionThread::checkExceptionRSASyncExecutionThread.cpp(250): CCLAssertError: CCL_CAUGHT: RSASyncExecutionThread::runImpl(): 
asynchRun_RequestRSASyncExecutionThread.cpp(842): CCLAssertError: CCL_RETHROW: RSASyncExecutionThread::processCommand(): 
asynchRun_RequestExecution/RSRenderExecution.cpp(625): CCLAssertError: CCL_RETHROW: RSRenderExecution::executeExecution/RSRenderExecution.cpp(1115): 
CCLAssertError: CCL_RETHROW: RSRenderExecution::processActiveDocumentsRSDocIo.cpp(124): CCLAssertError: CCL_THROW: 
The request 'asynchWait_Request' failed because a previous request that returned a fault cancelled the conversation.
 	   	Details 
RSV-SRV-0042 Trace back:RSReportService.cpp(856): RSException: CCL_CAUGHT: RSReportService::process()RSReportServiceMethod.cpp(259): RSException: CCL_RETHROW: 
RSReportServiceMethod::process(): asynchWait_RequestRSReportServiceHelper.cpp(818): RSException: CCL_THROW: RSReportServiceHelper::absoluteAffinityError()
Any ideas?
			
			
			
				the solution was to disable the TEMP files encryption from Cognos Configuration....