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If you use Excel 40 hours a week (and those are the weeks you are on vacation), welcome to the MrExcel channel. Home to 2,400 free Excel tutorials. Bill "MrExcel" Jelen is the author of 67 books about ...

Looking for the best Raspberry Pi projects of 2025? Our top 10 list shows you how to build a retro game console, a weather station, a smart mirror, and more.