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, ...

Excel’s pivot tables are powerful tools for data analysis, but their true potential is unleashed when you combine data from multiple sheets. By harnessing the power of Excel’s advanced features, you ...