I've recently installed Office 365 after using Office 2003 for a few years. Today I opened a document created on Word 2003 to make a few alterations - so far so good.
However, when it came to saving the altered version, instead of giving me the option of replacing the old version it saved the altered version as a docx file which opens as a Wordpad document unless I right-click the file and choose the "open with" option and select Word.
Can anyone throw any light on this please.

I suspect that you have blocked saving as a .doc file in your Word options in Word 365(2013).
File > Options > Trust Center > File Block Options
Uncheck the option for saving. See screenshot below.

You may need to re-register your Word 365 so that it becomes the default program to open .docx files. Search this site for reregister Word.

Attached Images

00 deleteme 1.png (77.5 KB, 16 views)

Thanks for your speedy reply Charles. I followed your instructions - nothing wrong in Trust Center, but the screen shot showed me the error of my ways. Why should I open a document in one format, alter it, and then try to save it in another? As a certain character from your side of the pond would say - DOH!

Thanks again Charles, and I'm off to find a brick wall to beat my head against.