format function is similar to printf - it is used to generate formatted reports 
 (One) My name is John            and I'm 27.25 years old
 (Two) My name is            John and I'm 27.2 years old
 ( Three ) My name is     John      and I'm       27        years old                      !!!!!!!!!!!!!!!!
 ( Four  ) My name is     John      and I'm   27.258 years old ################