Acknowledgement Thank You Letter

Dear [Mr. X],

I am writing to you this [letter/email] in a humble attempt to express my gratitude towards the unconditional support that you have given during [my project, my sickness, etc…]. I am truly thankful and appreciate your efforts. I could have never made it without you.

It is always good know that I’m surrounded by [loyal] and companionate people like yourself. You are a good friend and I take pride in our relationship. I don’t know if I will ever be able to return back the favor, but in case I couldn’t, please know how much I value and appreciate your help. Thank you very much.

Sincerely,