Text can be imported as an outline from an external file, or copied from another source. Of course, you can also type text straight inside PowerPoint. Whichever option you use, you will invariably have to format your text, especially if your text is sourced from multiple sources. This may happen because some text that you have copied or imported may be in small case, or even ALL CAPS — clearly you need to make all your text look the same! Rather than retyping the whole text again, you can use PowerPoint’s Change Case option to quickly change the case of selected text on your slide.