I have a worksheet that has customer sales data by month with a separate worksheet tab for a given year (2020, 2021, 2022). I would like to combine this data into one tab that has the monthly data details for all customers across the entire three year period. Key point - a year could have customers that are not in the other years. What is the easiest way to combine all this data into one tab for analysis to see all the three years worth of data together in a single tab?
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