Is it possible to require cells to only allow 1 letter?

Occasional Visitor

I am looking for a formula (if it exists) where I enter a 15 digit code, starting with W (ex: W12345678901234) and the cell will only except the code if it starts with the letter W, so if X12345678901234 is entered into the cell it would provide an error message.  Is this possible?

1 Reply



You can try this rule for data validation of cell D3.

data validation.JPG