Report template is generated by Reports, did you mean “to edit generated template”?
I tried to reproduce the issue. In case editing generated templates I had no problems with opening output file using OpenOffice or Word from Office 365.
In case creating template in Word from Office 365 and uploading it to report there is a problem with opening file using OpenOffice:
but I had no problems with opening output report file using Word from Office 365 again.
I was creating the DOCX template manually using Word from Office 365 and then uploading the file into my Report.
Also if I allow Reports to generate the Word template and then use Word from Office to edit the template and re-upload, I then get the error as if the template becomes corrupted.
So the question is: Are we allowed to create DOCX templates manually then upload ?
We’re seeing the same issue. It’s only started happening recently. In our app, the users can create templates in Word and add mail merge fields. This has worked fine for several years. What happens now is that when the template is put through yarg reporting, the output file no longer opens properly in desktop Office 365. MS-Word displays the following error. In this case the template file was created using Word and just has a single line of text and no mail merge fields