Does anybody knows of a formular or addon for Excel where I can use it to sort and group keywords based on common terms? For example if I have a keyword list like the following: boot cd boot cd rom cmos boot disk boot failure boot failure xp bootable cd boot dos ms bootable disk recovery I want to be able to group those keywords into two groups, each contains a general term. (boot) boot cd boot cd rom cmos boot disk boot failure boot failure xp (bootable) bootable cd bootable disk recovery Any help is appreciated.