When I attach an Excel-File generated using POI as datasource for a Word-Document there are no mail-merge-columns available to insert. I have to open the file in Excel and save it and then open the mail-merge-document in word again and then the data is visible. So there seems to be a small difference in the XLS generated by POI and the one generated by Excel which only affects Word.
Created attachment 5417 [details] Compressed Testcase: contains 4 example docs/xls and description file
The duplicate bug, whilst applying to import into access, has a patch attached that fixes thjis. Its just that there is a performance degregation when using it. Jason *** This bug has been marked as a duplicate of 9576 ***