May47 wrote:
does anyone know how to create a custom format in Excel 2007 that will all
you to enter this: 123456B789 and it automatically changes it to
12-3456-B-789

The letter can change so the mask should be able to accomodate that. I
found one that will work if the letter is always the same - but it won't work
if it's anything other than a B.


Excel allows custom *number* formats. What you are entering is text. I believe
this would require some programming.