How is commercial floor tile replaced ? if i want to take up damaged 12'" x 12" commercial floor...

if i want to take up damaged 12'" x 12" commercial floor tiles, what is complete steps ? they are traveled on extensively, and are not the plyable type, but are the stiff store type , and are not earthen, but regular floor tile type ..
Where can I find this blue LED under-bed...
Answers:    you have what most people call"vct" tile.best article to do if you want to take them up is to rent a machine that uses a sharp shrill blade that in a sense peels them up..a short time ago go but a local hardware store and check, the one in my town rents them out..