Hello every one,

May be this is very simple question for every one, but i am stuck up
and can not proceed because of this simple query.
I have an Excel sheet with results.  the following is final X
calculation, since i am the person who made this excel sheet so could
not undertsatnd wat exactly is happening
i am showing as in Excel sheet   (  i am showing only one row  but
there are more in actual one)

A      B       C             D       E       F     G
a1     b1      c1            d1     e1      f1     =
b1*d1*0.001*paramemeter.$b$18 - c1*1.2E-0.5

Now my dought is i have the values of b1, d1 c1 but wat exactly does
paramemeter.$b$18 means .. does it mean that we have an other folder
soem where which has the values of cell with 18 row number ..
please let me know abt this

Sing