This function converts text to uppercase letters.
UPPER(string)
The argument is the text you want to convert to uppercase. The argument may be a string, a reference to a cell containing a string, or a formula that returns a string.
This function does not change characters in value that are not letters.
Accepts string data. Returns string data.
UPPER(G15)
UPPER(R15C7)
UPPER("Report") gives the result REPORT
UPPER(""summary"") gives the result "SUMMARY"