For standard and custom numeric formatting with Format()
Numeric Format Strings
Note that "x" does not work because numbers are Doubles in Basic4ppc and "x" takes integers. Also note that Basic4ppc converts the format string to lower case.
For standard and custom numeric date and time formatting with DateFormat() and TimeFormat()
Date and Time Format Strings
Note that DateFormat replaces "m" with "M". TimeFormat replaces "M" with "m", "S" with "s" and "T" with "t". Date and Time are identical functions but just use the different format strings so they are actually both DateTime format functions but using the slightly differently modified format strings.