here's the deal. i have an excel spreadsheet with 2 columns. the first column is a set of indices and 2nd column is a set of corresponding descriptions.

now, i intended to use the spreadsheet as a reference.

for my purpose of testing...
string sObject
integer iIndex = GetIndex (sObject)

now, i want to search the iIndex in my excel spreadsheet and return the corresponding description from the spreadsheet. how do i go about this?