I have a table that i want to extract data from one column based on 2
conditions in other columns. The table has 4 columns, the first and second
are the columns that contain the data that has to meet the conditions, and
the fourth has the data the I want to retrieve. See below.

COMRAT SALREP COMRATDES COMPER1
ALB SL1D ABC Co. 4
AP SLA1 DEF Co. 6
ALB SLWA GHI Co. 2
AJ SL1G JKL Co. 7
ALB SL1H MNO Co. 10

Both the value in column A and the value in column B must match the
corresponding values from another worksheet and then return data from the
forth column. Example of a condition might be Column A=ALB and Column B=SLWA
then return 2.
I'm thinking that an index and match might be the way to go, but i need a
little help getting there.