With number of characters not specified, RIGHT will return the last character in the string. If this characters is a forward slash "/", the expression returns TRUE. If not, it returns FALSE.
Because TRUE and FALSE are coerced automatically to 1 and zero in math operations, we subtract zero from the result of LEN when the last characters is not "/" and we subtract 1 when the last characters is "/".
The result is provided to LEFT, which returns the final result.
The core of this formula is the MID function, which extracts the text in a URL starting with the character after "//", and ending with the character before the trailing slash ("/"): = MID ( url , start , chars ) The url comes straight from B5. The...
The Excel LEFT function extracts a given number of characters from the left side of a supplied text string. For example, LEFT("apple",3) returns "app".
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