need one formal letter as a example

An example of a formal letter is writing a resignation letter to the manager of the company, stating the reason for resignation in the same letter. ... Difference Between Formal and Informal Letter. Formal Letter :- They are written for official reasons Informal Letter :- They are written for personal reasons

Sorry, it is very difficult to write a formal letter in this forum. You had better search it in Google.

search it on Google.