Make duplicate line unique via sed script (viz http://www.gnu.org/software/sed/manual/sed.html#uniq ). You can download sed for Windows from the projects like UnxUtils. It is not clear uniqueness in the terms of RBMS, but usable as a rough process. After it, you can use PSPad on shrunk file.
-- <http://forum.pspad.com/read.php?2,64020,64022> PSPad freeware editor http://www.pspad.com
