https://communities.sas.com/t5/SAS-Procedures/Error/m-p/30922#M7369 You can start off by searching for the exact text of your error message at support.sas.com. I did and found a bunch of possible causes for that error.. Wed, 16 Mar 2011 14:37:10 GMT Doc_Duke 2011-03-16T14:37:10Z https://communities.sas.com/t5/SAS-Procedures/Error/m-p/30921#M7368 Hi,<BR /> <BR /> I am getting this error message while exporting.<BR /> <BR /> ERROR: DDE session not ready.<BR /> FATAL: Unrecoverable I/O error detected in the execution of the data step program.<BR /> Aborted during the EXECUTION phase.<BR /> <BR /> Please let me know how to resolve this error.<BR /> <BR /> Thanks,<BR /> Sudha Wed, 16 Mar 2011 13:39:59 GMT https://communities.sas.com/t5/SAS-Procedures/Error/m-p/30921#M7368 deleted_user 2011-03-16T13:39:59Z https://communities.sas.com/t5/SAS-Procedures/Error/m-p/30922#M7369 You can start off by searching for the exact text of your error message at support.sas.com. I did and found a bunch of possible causes for that error.. Wed, 16 Mar 2011 14:37:10 GMT https://communities.sas.com/t5/SAS-Procedures/Error/m-p/30922#M7369 Doc_Duke 2011-03-16T14:37:10Z https://communities.sas.com/t5/SAS-Procedures/Error/m-p/30923#M7370 Have you set the nowait/noxsync options if you're using DDE?<BR /> <BR /> Also if the process is saving over a file and you say don't save or some other excel prompt comes up you may cause the session to be interrupted. I try and make sure Excel is closed, especially the file I'm working on when using DDE. <BR /> <BR /> HTH,<BR /> Reeza Wed, 16 Mar 2011 20:31:39 GMT https://communities.sas.com/t5/SAS-Procedures/Error/m-p/30923#M7370 Reeza 2011-03-16T20:31:39Z