This support article contains the VBA code needed to create a User Defined Function, You can, then, change 32.50 into "Thirty Two Dollars and Fifty Cents" by entering something like the following formula into a cell:
=SpellNumber(32.50)
Also:
From John Walkenbach:
BAHTTEXT?
If you use Excel 2002+, you may have discovered the new BAHTTEXT worksheet function. This function converts a number to Thai text, and adds a suffix of "Baht".
This is the only built in function that translates numbers to words and then only in Thai.
