Trouble importing bilingual review files from Word - What am I doing wrong?

I have translated 18 files and they have all been reviewed by the client and now there are some changes to be made. I have followed all the instructions but keep getting a message: Error: the document layout cannot be identified. It will take me ages to do it all manually - please can someone help? 

The documents are all like this: 01 MOD COKG C&PM CHECKLIST.xlsx.review.docx 

I have gone into the documents and enabled editing and saved them again, in case that was the problem. I have also accepted all the changes in review mode, but that also did not help. 

I have checked that all the file options are ticked in Trados, and they are.

I would be grateful for any help!