I set up a workbook for Purchase Order tracking with a PO form an instruction
sheet and a PO vendors listing. My columns were lettered A, B, C, etc...
until yesterday when I noticed that the column headings are numbered 1, 2, 3,
etc... the same as the rows. I am not savy enough to write formulas for this
format and need to change it back.

Does anyone know how to change this back to letters? I should also mention
that this problem has only occured in this particular workbook.

I look forward to receiving a reply and possible solutions :)