MSWord has this kind of printing (of envelopes) built-in.

(saved from a previous post)

You may find that using excel for your data and MSWord for your invoice looks
prettier.

You may want to read some tips for mailmerge.
http://www.mvps.org/dmcritchie/excel/mailmerg.htm
http://www.mvps.org/word/FAQs/MailMerge

The first is from David McRitchie and the second is by Beth Melton and Dave
Rado.

And just in case you have text that needs to be formatted (percentages, for
example):

Debra Dalgleish posted this:

There's an article on the Microsoft web site that might help you:

Answer Box: Numbers don't merge right in Word
  http://office.microsoft.com/en-ca/assistance/HA011164951033.aspx

And if you prefer the old Mail Merge helper, Word MVP Suzanne Barnhill
has instructions here:

  http://sbarnhill.mvps.org/WordFAQs/CustomizingWord2002.htm

about half way down the page.

==========
I often cheat instead of racking my brain.

I'll insert another column (probably hidden!) and use:
=text(a2,"00000")
(or whatever format I want)
and use that field in the mailmerge.

(Cheating doesn't bother me anymore <vbg>.)

You can make your database, make an envelope page that will print properly
on YOUR printer. Then use a for/next macro to put each data field in the
right cell on the envelope page and then print it. Something like:

ADDRESSEE = Application.Proper(Title + FirstName + LastName)
[envelope!c6] = ADDRESSEE
[envelope!c7] = ActiveCell.Offset(0, 3)
[envelope!c8] = ActiveCell.Offset(0, 4)
[envelope!c9] = ActiveCell.Offset(0, 5)

Andrew

Excel alone is poorly suited for this task.

Word is much better for labels and envelopes using Excel as the source for the
labels.

Assuming you are using Word for the mailmerge and Excel for the source see these
sites for help.

http://www.mvps.org/dmcritchie/excel/mailmerg.htm

http://www.mvps.org/word/FAQs/MailMerge/CreateAMailMerge.htm

http://www.mvps.org/word/FAQs/MailMerge/CreateADataSource.htm

Gord Dibben  MS Excel MVP

I used to do this also, but Excel is a rather clumsy application for this
task. I now store the table of addresses in Access and use Word to print
mailing labels, 30 per sheet. I stopped printing directly on envelopes
because the Christmas cards that I bought every year always seemed to be a
slightly different size than the ones I had last year. Printing labels
saves having to readjust the print margins each year.