Getting Index Of Item From Array

For Each keyb In Request.Form
If Left(keyb, 15)="excelFieldName_" Then
'Response.Write(Request.Form(keyb) & "<br />")
ReDim Preserve arrExcel(myCounterb)
arrExcel(myCounterb) = Request.Form(keyb)
myCounterb = myCounterb+1
End If
Next

I am able to get the values in the arrExcel array with the code below...

for each item in arrExcel if item <> "None" then

Response.Write item
Response.Write("<br>")
End if
Next

What I would like is to get the index of the item I have found from the array. I then need to get the corresponding index from another array.

I tried item.getIndex, but that does not work ..