InStrRev begins searching at the end of a string and returns the position where one string is found within another string:

 
Sub InstrRevExample()
    Debug.Print InStrRev("c:\my documents\my file.txt", "\")
End Sub

1.	Format() Formats strings, dates, and numbers as specified.
2.	Instr function returns the position where one string begins within another string
3.	Left(string, length) returns the specified number of characters from the left end of a string
4.	Right(string, length) returns a specified number of characters from the right end of a string
5.	Mid(string, start[, length]) returns the specified number of characters from inside the given string
6.	UCase returns a string that is all uppercase
7.	InStr() Returns the location of the first character of a substring within another string.
8.	InStr(): A number representing the place value of a particular character within a string
9.	Using LTrim, RTrim, and Trim to Trim Spaces from a String
10.	Len() Returns the number of characters in a string.
11.	Len() return the number of characters in a string
12.	LCase() Converts the string to lowercase.
13.	UCase() Converts the string to uppercase.
14.	StrReverse() Reverses the order of the characters in a string.

InStrRev begins searching at the end of a string and returns the position where one string is found within another string: : String Function « Data Type « VBA / Excel / Access / Word