The problem can occur when the Word file you are trying to open has a different file extension than the file you are attaching. It happens when you convert the file manually. There can be other ...

To resolve the 'Word cannot open the existing file (Normal.dotm)' error, reset the Normal.dotm file, use Open and Repair, and disable add-ins.

Jeff Werner is a software engineer and has been writing this column since 2007. Question: Some of my files are turning into files I can’t open. I get this message in a box: “Word experienced ...