Write to text file?

MsgBox(4096, '', _Timer_Diff($timertransition))

So this is how I get the Timer_diff in a MsgBox...

Is there a way I can get autoIT to automatically write this information to a text-file instead of a MsgBox?

I know the answer is Yes, I just dont know how to do it hehe

Thanks for any support guys, have a nice thursday evening.