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.

How to Control Data Conversions in Excel for Windows and Mac Your email has been sent After years of struggling with Microsoft Excel's internal conversion feature, users can now disable Excel's ...

Troy Segal is an editor and writer. She has 20+ years of experience covering personal finance, wealth management, and business news. Catherine Falls Commercial/Getty Images Linear regression is a type ...