The Remove and Replace part can be done with the Find and Replace tool, where the only trick you have to know, is to use the Ctrl+J or Alt+0010 (the 0010 has to be typed in the numeric part of the keyboard) combination in the Find Box. Firstly, let’s look at the Remove or Replace multiple Line Breaks at once. Meaning that there are multiple line breaks you want to insert or remove at once. But sometimes you need to insert or remove line breaks (Alt Enter) on a high level. It’s what you use when you want to have text show in multiple lines regardless the width of the column. Alt Enter is known as a manual line break in Excel.