"Basic File Search"

I am in an excel class for school. We are learning out of an excel '03 book,
yet I have an '07 program. As part of my studies I am use the "File Search"
command. I used the interactive excel program and it stated that the '07
does not have this command. Yeah, I need help. I cannot finish this program
w/out this command. I need to use this to find 3 previous files created and
put them all into one new workbook
.