Spread JS supports rich text formatting in cells allowing users to format text with different styles including subscript, superscript, text decoration, text alignment, text in vertical direction, word wrap and text indent along with some of the built-in features like JSON serialization and deserialization, excel I/O, shrink to fit, auto fit etc.

Rich text formatting enables users to enhance the aesthetic appearance of a spreadsheet and manipulate data in an effective way.

For detailed information on how to apply rich text formatting in the cells of a worksheet, refer to Setting Rich Text in a Cell.