Unrar files without rar extension

HI
Newsbin does not unrar my files. Typically files without the .rar extension. Using Newsbin 6.9RC6 . When using NZBGet there is no such problem. If however theres is a rar extension there is no problem. This is downloaded NZB files
Newsbin does not unrar my files. Typically files without the .rar extension. Using Newsbin 6.9RC6 . When using NZBGet there is no such problem. If however theres is a rar extension there is no problem. This is downloaded NZB files