2: Envelope Options
A Size 10 envelope fits a sheet of paper folded in thirds. This is a
standard business size.There are other sizes on the drop down list.
When you click on OK, MS Word will automatically
format the layout and margins of your document to fit a Size 10
business envelope.
Gotcha!
By default, Word is looking
for a database (.mdb) file. You need to change Files of Type to
Excel.