20211027_720pmp4 (Only the very first character is capitalized; numbers remain unchanged). Uppercase: 20211027_720PMP4 (All letters capitalized).
You can use online tools like Case Converter or Convert Town to quickly switch between these formats. Using the =PROPER(text) Function - Microsoft Community Hub 20211027_720pmp4
720p MP4 (Converting the date and technical specs into a human-friendly title). 20211027_720pmp4
Because your text contains an underscore ( _ ), the "P" immediately following it is capitalized. Other Formatting Options 20211027_720pmp4
In data applications like Microsoft Excel and TeamDesk , the function capitalizes the first letter of a string and any letter that follows a non-letter character (like a space or underscore).