Linking several workbooks
 

I have 5 workbooks in different folders that I would like to summerize on one
main spreadsheet for the month. I don't want to link all the info in each
workbook just 3 columns from each workbook. The workbooks contain invoice
numbers and I would like them to be in numerical order on the main monthly
summerize spreadsheet. I hope someone can help or at least tell me if this
is possible.