How to get my MS office back?

Recently, I did something stupid which I really regret now. I have wrongly and stupidly uninstalled it when I tried to spare CPU space by uninstalling unwanted programs. You see how stupid I was. And now I can't get any free official version of it. I can't do my work now Who can help? Is there any chance to get it back?

If you have completely uninstalled it, it seems impossible to get the original package of it back. I don't know You might need to use other similar software.

I think I can get it back. I will go to PC experts for help, just pay them

Actually there is free version of MS Office you can use. But maybe you don't get used to them, cause they will have different weird features compared to the offical MS office.