Subselect with between

["Roger Harman" <RHarman@xxxxxxxxxx>]

I have a file with individual sequence numbers.  I have another file
with a start and end sequence number that contains comments about that
range. 

Example:
  File1
    NUM:  11
    NUM:  12
    NUM:  65
    NUM:  71

  File2
     Start:  10     End:  50      Cmt: "Range 1 blah blah"
     Start:  71     End:  71      Cmt: "Range 2 blah blah"

I want to find the records in File1 that fall between START and END in
File2.  In this case -  11, 12, 71

Something like "Select * from File1 where NUM between (select START,
END from File2)" 

I've tried various SELECT statements but no luck.  Any suggestions?

Thanks.