Regardless of file types, whenever saving files (or before copying files to the station), you restrict all characters in file and folder names to ones in the original set of ASCII characters in the BNF (Backus-Naur Form notation) for framework file paths, namely:

a-z | A-Z | 0–9 | specials

specials= space | . | : | - | _ | $ | + | ( | ) | & | ‘ | ’ | @ | [ | ]

Otherwise, use of other characters, for example, a tilde ( ~ ) in file or folder names may result in obscure problems, particularly on controller platforms (QNX-based hosts).