How to Transfer Excel Sheets to Open Office. In addition to opening its own native .ODF file format, OpenOffice Calc can also open worksheets from other spreadsheet software such as Excel.

You can make Excel always open old spreadsheets in Protected View. Enable or disable Protected View using in-built setting, Group Policy, Registry.

Open your first instance of Excel, and then right-click the Excel tile on the Start screen. Hold down the "Alt" key and click "Open New Window" on the Start screen taskbar.

Uncover hidden features, new uses for old tools, and handy workarounds to speed up your everyday work in the powerful spreadsheet application.