LibreOfficeDev 24.2 Help
3XKQ3‖Converts single-byte (half-width) ASCII or katakana characters to double-byte (full-width) characters.
iDoUA‖See https://wiki.documentfoundation.org/Calc/Features/JIS_and_ASC_functions for a conversion table.
AjjnX‖JIS(Text)
f9YAh‖Text: the text string that contains characters to be converted.
b289j‖Applying the JIS function to a string composed of double-byte characters will return the input string without any modifications.
BBEVj‖=JIS("LibreOffice") returns the string "LibreOffice". Note that the returned string uses double-byte characters.
fEFNT‖=JIS("ライト") returns the string "ライト", which is composed of double-byte characters.