Capitalizes the first letter and any other letters that follow a non-letter character in a text string. Converts all other letters in the text string to lowercase letters.
Syntax
PROPER(text)
Text    is text enclosed in quotation marks, a formula that returns text, or a column reference containing the text you want to partially capitalize.
Examples
| 
                   Formula  | 
                
                   Description (Result)  | 
              
|---|---|
| 
                   =PROPER("this is a TITLE")  | 
                
                   Proper case of string (This Is A Title)  | 
              
| 
                   =PROPER("2-cent's worth")  | 
                
                   Proper case of string (2-Cent'S Worth)  | 
              
| 
                   =PROPER("76BudGet")  | 
                
                   Proper case of string (76Budget)  |