In Excel 365 for Mac, you can also use Option + Return. Mac shortcut for line feed: Control + Option + Return or Control + Command + Return.Windows shortcut for line break: Alt + Enter.The fastest way to create a new line within a cell is by using a keyboard shortcut: Insert line break in cell after certain character.So, how do you create a new line in Excel? There are three swift ways to do this. In Microsoft Excel, however, this work differently - pressing the Enter key completes the entry and moves the cursor to the next cell. In most Office applications, starting a new paragraph is not a problem - you simply press Enter on your keyboard. A good example of multi-line text could be mailing labels or some personal details entered in one cell. When using Excel for storing and manipulating text entries, you may sometimes want a certain part of a text string to start in a new line. The tutorial will teach you three quick and easy ways to add a line break in Excel cell: use a shortcut to type multiple lines, Find & Replace feature to add a carriage return after a specific character, and a formula to combine text pieces from several cells each starting in a new line.