Final answer:
To add typewriter animation in PowerPoint, select the text box, apply an entrance effect like 'Appear' from the Animations tab, and adjust the 'Effect Options' to animate 'By letter'. There isn't a dedicated typewriter effect in PowerPoint, but this method simulates it closely.
Step-by-step explanation:
To add a typewriter animation in PowerPoint, begin by selecting the text box containing the text you want to animate. Once you have selected the text box, go to the Animations tab on the PowerPoint ribbon. Here you'll find various animation options. Click on 'Animation Pane' if you want more control over the animation settings.
Under the Animations tab, click on 'Add Animation' and scroll down to the 'Entrance' effects. Choose 'Appear' or a similar effect that suits your preference. After applying the animation, go to the 'Animation Pane' to fine-tune it. Click on the drop-down menu of the newly added animation and select 'Effect Options.' Here, you can set the effect to occur 'By letter' which will give it the typewriter effect. Adjust the delay to control the speed of the animation.
Note that Microsoft PowerPoint does not have a dedicated typewriter effect, so the combination of appear effect and letter-by-letter animation is the closest way to achieve a typewriter-like animation. Remember, practice and tweaking the settings can help perfect the animation to your liking.