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I have different versions of school exercise books. I then copy/paste the questions on each page and need to verify which exercises- or parts of exercises- are common.
example, where each letter represents a word:
take 5 pies; let 5 pies; If the sun sets;
7 donkeys carry; 7 donkeys carry; the moon rises;
The sun sets at 9.00; 10 men work; A loaf is;
The resulting new column should then read:
take 5 pies
let 5 pies
If the sun sets
The sun sets at 9.00

A Web search using different search engines using the same term is another example, transferring the results to an excel file for comparison.
If you can help, great. Anyway, thanks Paul
ezrab

sorry for slow reply, been on me annual hols for past few weeks, i will have a think about that, i think i understand what your getting at, so thats a start i suppose!