Hi All, I'm working on a document which requires a user to enter the MAC address of a computer. The current document requires they put these 6 values in separate cells. For formatting purposes, I'd like it to be in one cell only. Further, I'd like them to be able to just enter the characters, not the separator. I was trying to work this out in Custom Formatting, but wasn't able to. The what should appear should be TT-TT-TT-TT-TT-TT, where TT is two text characters. Thanks in advance.