Hello. our company has been using TOPS ,calculatting the Discount Factor for Swap and to evaluate M-mkt value .The number of outstanding items are over 100.However, the manual guidance apparently disaapearred now. What I would like to know most is how to use Tops formula and what the specific formula means in our spread sheet.It is greatly aprpeciated if you kindly send us the guidance for us . I would like to examine our spread sheet formula and correct the error. Thank you very much for your help.