Find
The Find function searches for the position of a text string in the text of a value.
The function has two or three arguments.
<Find_text> is the text string to find in the <within_text>.
The optional <start_at_num> is starting position to begin the search.
The search is case sensitive.
The function results in an error if the <find_text> is not found.
Usage:
= Find(<find_text>, <within_text> [, <start_at_num>])
Example:
/* returns 8 */
= Find("o", "Hello world", 6);
