Important PointsIn computing, a keyboard shortcut also known as a hotkey is a series of one or several keys to quickly invoke a software program or perform a pre-programmed action. Ctrl+N is a keyboard shortcut most often used to create a new document, window, workbook, or another type of file. Additional InformationCtrl + M - In Microsoft Word and other word processor programs, pressing Ctrl + M indents the paragraph. Alt + M In Microsoft Excel, pressing Alt + M opens the Formulas tab in the Ribbon. Alt+N is a keyboard shortcut most often used to open the Insert option in a file menu or the Ribbon. Therefore, Ctrl + N is the shortcut key that creates a new presentation file in MS-PowerPoint.