# File Naming Rules

• Cannot be empty.
• Cannot start with "/".
• Cannot have consecutive "/".
• The maximum encoding length is 850 bytes.
• Use uppercase or lowercase letters [a-z, A-Z], numbers [0-9], and symbols (-, !, _, ., and *), or any combination of the preceding.
• Some ASCII control characters are not allowed, including Up (↑), Down (↓), Right (→), and Left (←), corresponding to CAN (24), EM (25), SUB (26), and ESC (27).
• If the name of the uploaded file or folder contains Chinese characters, when you access or request the file or folder, the Chinese characters are converted into a percent-encoded string according to URL Encode rules.
• Do not use any special characters: ` ^ " \ { } [ ] ~ % # \ > <, and ASCII 128-255 in decimal.
• Special characters that require special handling: , : ; = & $ @ + ? (Space), and ASCII code: 00-1F in hexadecimal (or 0-31 in decimal) and 7F (127 in decimal).