Function Reference: FIND, SEARCH

Syntax
=FIND(find_text,within_text,[start_num])
=SEARCH(find_text,within_text,[start_num])
Purpose / Description
Returns the location of the a sub-string within another string, providing the character position of the first character.  FIND is case sensitive whereas SEARCH ignores the case of the text strings, doing a case-insensitive search.
Arguments
Name Type Description
find_text text string A constant, reference or nested expression that provides the text string to be found within another string.
within_text text string A constant, reference or nested expression that provides the text string within which the sub string is to be located.
[start_num] number An optional constant, reference or nested expression that provides the character position (counting from 1 for the first character) from which the search commences.  Defaults to 1 if omitted.
Return Values
Type Specific Value Description
number 1 If the find_text argument is an empty string, even if the within_text argument is an empty string, the position 1 is returned by both functions.
number   The position of the first character of the text string passed to find_text within the text string passed to within_text.
error #VALUE! If the text string in the find_text argument cannot be located within the text string in within_text.  In the case of the FIND function, this may be caused by case mismatches between the strings.
error #VALUE! If the value passed to start_num is not a number and cannot be coerced to a number
error   Any errors referenced by arguments are returned due to propagation of error values.
Notes / Comments / Advice / Warnings
Note: The only difference between the two functions is that SEARCH is case insensitive, whereas FIND requires the case of the sub strings to match.
Advice: If case matching is unimportant, use the SEARCH function to avoid case matching problems.
Caution: Nesting the FIND and SEARCH inside an IFERROR can handle unmatched searches, however, other errors can be masked.
Examples: Open / download sample workbook: FIND, SEARCH.xlsx