Alternatively referred to as Control+Tab and C-tab, Ctrl+Tab is a keyboard shortcut most often used to switch between open tabs in a browser.
How to use the Ctrl+Tab
Ctrl+Tab in an Internet browser
In all major Internet browsers (e.g., Chrome, Edge, Firefox, IE, Opera), pressing Ctrl+Tab switches between open tabs in your browser. For example, if you had five open tabs in your browser you could press Ctrl+Tab to switch between each of those tabs going left to right without using your mouse.
Using the shortcut Ctrl+Shift+Tab, switches between the tabs in the opposite direction (right to left).
Ctrl+Tab in Excel and other spreadsheet programs
If you only have one workbook open this keyboard shortcut will do nothing.
Ctrl+Tab in Microsoft PowerPoint
In Microsoft PowerPoint, the Ctrl+Tab switches between the open presentations if you have more than one presentation open at once.
If you only have one presentation open this keyboard shortcut will do nothing.
Related keyboard shortcuts and keys
Below are links to related keyboard shortcuts and individual key pages.