He's an idiot.
I thought at first that he might be a reasonably intelligent person with a minimal understanding of English and a rather crappy job, but no.
Anybody who can argue with a straight face that there's a functional difference between setting a first line indent and just hitting tab in Word really doesn't know what he's talking about. "Well on my compiler [computer?] it is always us [obvious?] that there are difference between fist [first] LAN [line] indent and the tab. The tab can have a different with [width] on a different compiler [computer]." Obviously he doesn't understand that the tab 'with' is stored in the 'fire'. Jesus Christ.