Double square brackets appear in structured references in Excel when column headers contain spaces or special characters. They're also inserted into formulas when you reference header and total rows ...

Years ago, no math education was complete without understanding how to compute a square root. Today, you are probably just ...

The @ symbol can also appear in regular formulas outside of tables when Excel thinks you're trying to reference a single value from a range. If you see it pop up unexpectedly, it usually means Excel ...

A corrections officer in a Virginia prison was killed in an attack by an inmate, the state corrections department said.