Sender Name and Surname
Address of the Sender

Recipant Name and Surname

Address of the Recipient

Dear Mr Robinson

Please accept this letter as my formal apology for what happened on on our last business dinner held on .01/28/2013..

It was not my intention to cause any damage or inconvenience. In retrospect, I believe the situation resulted from great tension and pressure I felt due to importance of this event. While this is by no means an excuse for my behavior, knowing the cause will help me guard against future mistakes.

Again, I am sorry for what happened. If you would like to continue this conversation, please feel free to call me at 00 000 000000. I look forward to hearing from you and putting this matter behind us.

Sincerely,
Sender Name and Surname