READ ONLY MESSAGE BOX
WHEN YOU OPEN AN EXCEL FILE AND SOMEONE ELSE ALREADY HAS IT OPEN, THEN A BOX SHOULD POP UP TELLING THE USER THAT IT IS READ ONLY.
Kenneth Barber commented
Where I work, there is such a message box. I'm not sure what setup conditions are required before you see the message…
Erick Sodhi commented
YES! This is one of the biggest issues my Excel-using clients and my boss complain about.