Export to XLIFF Error

I need to supply an XML file for translation. I'm using Word 2010 and when I select the "Export to .xliff format" option, the file is exported but Windows pops an error message that says, "The file contains custom XML elements which are no longer supported by Word. If you save this file, these custom XML elements will be removed permanently." I assume this will pose a problem for the translation company. Any ideas? 

Thanks, 
Debbie

Just noticed this at the Microsoft support site:

"Versions of Word that are distributed by Microsoft after January 10, 2010 no longer read the custom XML markup that may be contained within .docx, .docm, .dotx, .dotm, or .xml files. Word 2010 can still open these files, but any custom XML markup is removed."

Is there a workaround for this? 

Thanks,

2 Replies