I am in the process of converting mail merge documents from .doc to .docx format (To word 2010). I open the .doc and click convert then save it as a .docx. It seems that the .docx file doesn't recognize that theres a header file anymore and instead using the first record in the datasource.
Example: I have both versions open and go to the mail merge helper. I view the datasource in both.
.Doc
Owner_Name: Jon Doe
Organization: Some company
.Docx
Jon_Doe: Jon Doe
Some_Company: Some company
As you can see the header file isn't being recognized correctly in the .docx. Weird part is that if I relink the header file I can preview all the data correctly. But when I save it and re-open it, it doesn't recognize the header again and the data is still screwed up.
Note: the header source is a doc(also tried it as a.docx) and the data source is a text file.