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.

Capturing and organizing customer or prospect email addresses is the first basic step toward compiling a mailing list. If you've used Microsoft Excel to enter and organize the addresses, the next step ...

Q. I usually like Excel PivotTables, but because they don’t allow me to do certain things, such as delete cells or insert new columns or rows, I’m wondering if there is a reasonable alternative? A.