How to start a new line of text inside a cell in Microsoft Office Excel?

It is not difficult, but if you don't know the track, then it will be a big headaches!

Indeed, it is very easy, just press "F2" to the cell, make sure you are in the "Edit Mode" to the cell. 

Then Press "Alt" + "Enter", then it will be done. The same method applies to Google docs - Google Sheets.

Here is the video to show you that.

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