Hello. I am trying to add a dash to the zip codes with a length of more than 5 NUMERIC characters only. Also, I have zip codes of 6 characters (letters and numbers) that I am not looking to edit. Can somebody please help me with a formula that meets those conditions?
| Zip code | Result |
| 986044850 | 98604-4850 |
| 79936 | 79936 |
| 564654262 | 56465-4262 |
| R2X1G7 | R2X1G7 |
Thank you