This is a passionate plea from not only me, but millions of other people who have to deal with Excel spreadsheets on a daily basis: Please refrain from using 8000 colors if you’re creating a spreadsheet. I received a spreadsheet the other day and there was at least 15 different colors used to differentiate the data. The result was that it took me twice as long as it should have to review it. This is a disturbing trend that seems to be getting worse, and I really want it to end.

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