Adding a comma between two words

[JACKIEC1992]

I am trying to add a comma between the state and the name. For example, currently, the top cell is NC South Park. I'd like it to be NC, South Park. 

[cjaneczko]

Try this in a formula tool. Update "Studio" to whatever the fieldname is. The formula grabs the first 2 characters in the field, adds a comma and space, then trims the first three characters and adds the rest of the string to it. 

Left([Studio], 2) + ', ' + Substring([Studio],3)

[KimLamNg]

@JACKIEC1992 One way to do this with RegEx tool