Plz let me know about the following:

1.For interview purposes ,do i require any forwarding letter from employer addressed to visa officer or for that matter any document addressed to visa officer?

2.Is there any specific order in which we need to arrange our documents in the file.

-In the forum ,members have posted there experiences like, the visa officer took the file.If i'm asked to handover the file, Kindly advise apart from the employment related documents do we need to put any other documets pertaining to our financial status and educational documents in the file or should only be given when asked for it.

-Do I carry any cover letter from my side.

Thanx in advance.