You can do it in MS Word -- just be aware that all of these DIY fabric printing products will fade. I now rely on Spoonflower any time I need to print photo fabric.
You need to create a Text Box.
Type your text in the box (one word or phrase at a time -- if you have a bunch, you'll need multiple text boxes)
Select your desired font & size
Right mouse click & select Format Shape
Effects (pentagon icon) - Layout & Properties
3-D Rotation
X Rotation: 180
Close
Note: On older versions of MS Word, you do not need to click the pentagon icon (there is none). Just go straight to Layout & Properties