Build more efficient spreadsheets by using the dollar sign to lock specific rows, columns, or permanent addresses when referencing cells.

Use dynamic arrays and tables for fast, scalable cascading drop-down lists in modern Excel.

A reader named Sam told me he has a problem. His Windows computers aren't playing nice with each other. Unlike his iPad and iPhone, they're never in sync.

The American Red Cross urges donors to make an appointment to give blood or platelets now to keep the blood supply as strong ...