TextEdit is a word processor included in Mac that lets you create documents in various types of formats and is very easy to use. The default file format for new documents created in TextEdit on Mac is RTF, an acronym for Rich Text Format, a format that, as the name implies, allows you to create documents with basic formatting options such as bold, underline, etc ....
In case plain text files are preferred, you always have to make sure to change the default format of new documents created in TextEdit. If you are one of the people who prefer text in format above the enriched text, you will be shown by means of the following tutorial how to permanently configure this format as default in TextEdit.
How to set the flat text format as default in TextEditAs with many things in Mac applications, you can usually make changes from the preferences panel and TextEdit is no exception.
To change the default file format to .txt, simply start TextEdit, click TextEdit on the menu bar, and then click Preferences.
Make sure you are in the new document tab and then select plain text (plain text) in the format header. Close the preferences window, and from now on, any new documents you create in TextEdit will automatically be in plain text and will be saved as a .txt extension file.
While adjusting TextEdit preferences, it is probably not a bad idea to change the default font and font size for new text documents. As you can see in the picture above, you are also able to change the default size of the window to make it larger or smaller depending on your needs.