Database nerds look away now.
I have two loads of data in .ods or .cvs. Basically two versions of a membership list, one with >500 rows, the other >700. I want a list of approx 200 who are on the big list but not the smaller. 'Compare' in LO just gives me a list of thousands of cells that are different, that's no help.
Can anyone help? Lots on t'internet about merging and tracking changes but nothing about my case I can find.