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How to Quickly Change Font Size and Typeface in Microsoft Outlook
Microsoft Office lets you use any font you want in your documents. However, it doesn’t save your font settings when you close those Office programs. This requires you to select your preferred font every time you create a new document.
If you tend to use a particular font in your Office documents, it's a good idea to set that font as the default font in all of your Office applications. There are ways to change the default font in several applications, including Word, Excel, PowerPoint, and Outlook.
Setting a default font in Microsoft Word is quite simple. You don't need to edit any configuration files.