Go to folder options in your control panel (Assuming you're using XP) and correct the problem by setting a new program to open .dot files with.
Thanks Raptor. I do have XP. I added the dot file and selected IE because it was the recommended program. I still couldn't open the dot files. However, while doing this I noticed I didn't have doc files either. So, I added the doc file type and the run program was automatically set as WordPad. Now I can open doc files - so I have made some progress.
I changed the run program from IE to Adobe for the dot extension just to experiment. When I tried to open the dot file I got a message saying Adobe couldn't open the file because of several possible reasons, eg the file was originally an attachment to an email, etc.
Then I changed the dot program to WordPad. I can now open the dot files but they contain jibberish in some spots but look good in others.
Any other suggestions?