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.

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 ...

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 ...