Question

what is the format to write a letter

Answer 1

you will get the format in the attachemaent,
but see this too
to write a formal letter , you should keep these points in mind :

a. use simple language in short sentences and this will bring clarity to your letter .
b. a formal letter must be brief and to the point anything that has a personal touch cannot be included in a formal letter
c.the tone must not be stiff and even a letter of complaint can be polite positive and friendly .

Answer 2

Hey friend here is your answer
The format of writing letter(formal)
date
state name
From address
To address
Salutation
Sub
thanking you
yours____________
your name.

the format of writing letter (informal)
date
state name
dear_______
conclusion of writing
thanking you,
yours lovingly,
your name.