Capitalize each word, or convert to all caps or lowercase, with one function.
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=PROPER(A2)PROPER capitalizes the first letter of each word; UPPER makes everything uppercase; LOWER makes everything lowercase. They're ideal for cleaning inconsistent name and label capitalization.
=PROPER("john SMITH")→John SmithNormalizes mixed-case names.
All uppercase
=UPPER(A2)Converts everything to capitals.
All lowercase
=LOWER(A2)Converts everything to lowercase.
PROPER can't know special casing. Fix exceptions with a nested SUBSTITUTE, e.g. =SUBSTITUTE(PROPER(A2), "Mcd", "McD").
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