Repairing with winrar 3.30?

[Valcron]

How do you use the winrar repair feature if you can't open the rar file aka says its corrupt. I know there is a way it's just been so long since i had to use this feature that I can't remember how.

[GLH]

[Alt]-[R]

or

Menu EXTRA -> Repair Archive

[Valcron]

ya the problem is i can't open the rar file in order to go to menu and choose repair or to hit alt r. Says its in an unknown format or damaged

[Luciel]

make sure u got the latest version, if not, then winrar can simply not open it, maybe it aint really a .rar file, its just got that extension

[AXmichigan]

what kinda file is it? like whats in it?