Retrieving data from another spreadsheet

Question

I'm using Excel 2002. And i would like to know the easiest method in grabbing data from another spreadsheet whenever a key number is inserted.

This is first worksheet. I need data to be automated inserted to Column E whenever Column C is entered with numbers. These numbers are not any numbers but key numbers from worksheet 2

This is the second worksheet. So for example, I key in 208 in worksheet 1, Column E from worksheet 1 should automatically grab AFI number from Column G of worksheet 2.

Additional : Worksheet 1 and worksheet 2 have primary fields which is "Monthly Payment" I'm contemplating between Vlookup. Please advise.

UPDATES :

ERROR MESSAGE 1 :

ERROR MESSAGE 2 :

Answer 1

You have to use vlookup for this case. Paste this to E2 on Sheet1 and drag down

=IFERROR(VLOOKUP($C2;Sheet2!$D$2:$G$9999;4;FALSE);"")

If your data sheet name is different than Sheet2 you can change it from the formula.

Regards,