eliminating commas from spreadsheet

I'm a newbie in populating Excel with imported data, so foregive my dumb question. Using Office 2000 Professional

Problem: I have comma delimited ascii files of price list information that I can convert to good looking Excel spreadsheets, except that each cell (after the first) on each line still displays the delimiting comma.

Question: Short of maually editing each of the thousands of cells, is there any way to rid myself of this troublesome comma?

Thanks in advance for your help.

Frank McKinney