Hello, could you please help me with this letter.
Here I need to ask for the information that should help us to finish the work.
x - this is the system we are working on
Y - this is the company we need help from, their company has a product we have to integrate to our system
"Good afternoon,
My name is -----. Our company is working on X.
One of the system parts we are working on, is processing files from Y
We were provided with the document, explaining the structure and meaning of fields in files from and to Y
When examine it we have found some of the fields to be not quite clear for us.
Could you please help us to clear up these fields."
Thank you in advance, hope that explanation was
ok 