Hi
This is going to give you some punctuation characters but may get you started.
=LEFT(CONCATENATE(CHAR(RANDBETWEEN(48,90)),CHAR(RANDBETWEEN(48,90)),CHAR(RANDBETWEEN(48,90)),CHAR(RANDBETWEEN(48,90)),CHAR(RANDBETWEEN(48,90)),CHAR(RANDBETWEEN(48,90)),CHAR(RANDBETWEEN(48,90)),CHAR(RANDBETWEEN(48,90)),CHAR(RANDBETWEEN(48,90)),CHAR(RANDBETWEEN(48,90)),CHAR(RANDBETWEEN(48,90)),CHAR(RANDBETWEEN(48,90))),RANDBETWEEN(6,12))
Tony