Trying to use vlookup to match data from two tables and return data from another column?

Have one table with two columns of data (Table 2) and another table with one column of data (Table 1). I need to match the first column of data in Table 2 to the column of data in Table 1 and then bring in the data from the second column of Table 2. My formula looks like this: =vlookup(j2,'[3rdextract.xls]3rdGrextrac… I am not getting any returned values or n/a