Much like an used car with missing parts, you get to buy or find the replacement parts. If a CD is missing, you look to the machine's maker or Ebay. If some KEY is missing then you ask the person/place/maker for the replacement key. Such parts and information may not be free but neither is that locksmith's fees when you lose the car keys.

For now, I can suggest you look at OPEN OFFICE from http://www.openoffice.org if you need something to open Word, Excel and Powerpoint documents. The price is free.

Bob