How to separate the filename from a path?

I know this is so easy but I can't think how to do it. I have a path e.g. C:\SomeDirectory\SomeSubDirectory\SomeFile.Ext

I want to break this into 2 strings
Str1: C:\SomeDirectory\SomeSubDirectory
Str2: SomeFile.Ext

VB Code:

'' Jamie Plenderleith
''
 
 
'' Return the path of a given full path to a file
''
Private Function returnPathOfFile(ByVal strFile As String) As String
    returnPathOfFile = Left(strFile, InStrRev(strFile, "\"))
End Function
 
'' Return the filename of a given full path to a file
''
Private Function returnNameOfFile(ByVal strFile As String) As String
    returnNameOfFile = Mid(strFile, InStrRev(strFile, "\") + 1)
End Function

Cheers :)