hi, i need some help.

i have an excel file that i need to convert into labels to put on envelopes.
in the first colum i have first names, second column last names, third colum addresses etc etc...

how can i be able to print these on labels insted of re-typing each address as i have over 300 of them. i have tried to do a mail merge in word, but it does not work.

thanks so much.
sam