If you record daily sales data in Excel, it may be impossible to explain variances from day to day. Instead, it may make more sense to summarize the data by week to spot trends and explain variations.

Most online Excel tutorials are obsessed with flashy new functions, complex formulas, or clever hacks that solve simple problems in overly complicated ways. But the real upgrade isn't new or exciting ...

Much of the data that you use Excel to analyze comes in a list form. You might need to sort the data, filter it, sum it, and perhaps even chart it. Excel tables provide superior tools for working with ...