Discover how to sum only filtered data in Excel without errors. Perfect for reports, dashboards, and accurate data analysis. ...

Most businesses test their backup systems on the same device they're backing up — a critical oversight that can render recovered data completely unusable.

Hold down the Power and Volume Down buttons at the same time, then wait a few seconds. If your iPad's buttons aren't working, you can also go to Settings > General > Shut Down. Even a daily reboot can ...