I'm going to ignore the stupidity of telling me the name of the file and then saying the problem might (but only might) be related to the name of the file.
I know I'm biased with all the time I've spent using LaTeX, but there's not a single thing in Word that works nicely for me. Things like this just take the cake.
That students don't remember to send PDF is the big problem here. But really, given the fact that I can't even open a report in Word that was written in Word, and it's 2014, and there are so many other things that people do wrong in this program, can you blame me for telling students that Word is a waste of time and getting them to use LaTeX instead?