I have two data sheet in excel, how to join them together?
by AngrybirdII - 1/22/13 12:08 AM
Plz help me! I have two customer data sheet in excel.The first sheet is mainly customer info and consumption detail in 2011, the second is the customer sheet for consumption in 2012. Each customer with a unique Customer ID. I want to pick out the old customer of 2011 from 2012, and analysis their detail consumption info, and decide a best customized marketing plan for them. So how can i do this quickly, since i have more than 10 thousand customers.
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