Avery Permanent Square Label, White, Inkjet/Laser, 2 x 2-Inches, Pack of 300 (22806)

I wanted to put a different title on each label but can't figure out how to do it. Or how to get these INTO Microsoft word like other labels. Help!

do they stick to plastic?

Unfortunately, the title says permanent. I am actually wondering if somebody has tried to remove the label after it's been placed?

Can i make my own template on a word document or do i have to use avery's software?