Microsoft Word guides
Documents, formatting, mail merge and templates.
Microsoft Word
How to do a mail merge in Word (letters and labels)
Send the same letter to a whole list of people with each one personalised, using a spreadsheet as the source.
Microsoft WordFixing a Word document where the formatting has gone wrong
Wonky spacing, mystery indents and text that changes size on its own — how to see what is really happening and put it right.