The files have all changed from the color blue with a W at the top right to red with the Adobe symbol.
When I open them they all open in full screen size and the Adobe Reader appears at the top left of the screen where the word Word use to appear.
Went to the Get info, Adobe Reader DC was selected.
Clicked on that box to see what others were available.
Word wasn't listed, so I selected "Other" and then Microsoft Office, then Word.
Clicked on Change all and tried to open a file.
That opened another box titled Convert From, with many offerings.
Tried many of them but when I opened a file, it was gibberish, not the original document.
Sorry don't see where .doc or .docx are located