Table validation rule - field accepts only A-Z (1 Viewer)

I am wanting a text field in a table to accept only chars A - Z

In my validation rule I use

Like "a" Or "b" Or "c" Or "d" Or "e" Or "f" Or "g" Or "h" Or "i" Or "j" Or "k" Or "l" Or "m" Or "n" Or "o" Or "p" Or "q" Or "r" Or "s" Or "t" Or "u" Or "v" Or "w" Or "x" Or "y" Or "z"

Which works

Then validation text I use

Enter Alphabetical Letters only

Also works

Is there any short way to write Like A.....thorugh to Z without the long statement?

Use an Input mask.

Col

Ok

If I Type in the Input Mask

?

this accepts A-Z. But limits me to one char. What if I want to use unlimited chars entered?