Isaved a document and emaild to my boss, he was unable to open it in word and
my emaild document was received as DOCx. what does that mean?
It means you're using Word 2007 and you saved the file in the new Word 2007
format, which uses a .docx extension.
You can click the Office button, hover over the Save As item until the menu
appears, and click Word 97-2003 Format to save in the old .doc format.
If you frequently need to share documents with people who don't have Word 2007,
you can set the old format as the one that's used all the time unless you
specify a different one. Click the Office button, click Word Options, click Save
in the left side of the dialog, and change the "Save files in this format"
dropdown.