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.

Design is best, but when you're stuck with an existing data structure, it helps to know how to work around trouble. Susan Harkins explains. Excel sheets grow — sometimes by adding new functionality, ...

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 ...