Copying superscript text from Word/Powerpoint to Illustrator

I am trying to find a solution to copying text over with in-text citations in the form of superscript from Word and PowerPoint into Illustrator and InDesign.

I found an example of x³ in another thread that I can copy from Office to Adobe just fine, but when I manually type it (ctrl+shift+ +), it does not copy over and it looks slightly different. So I'm wondering what x³ is and how or if I can use that format to write the citations to begin with. 

The attached screenshot from PowerPoint shows both versions - the left one is x³ and can be copy/pasted, the right is manually entered and cannot (pastes as x3).

Thank you!