Currently I'm learning Japanese by discovering vocabulary and new grammars which I can find in Japanese Windows XP. I have some trouble understanding these grammar elements in the following examples :
ファイルを保存 (Fairu wo hozon)
保存するファイル (Hozon suru fairu)
Google translate says their meanings are "Save the file" and "The file to be saved" respectively. However, I'd like to know which type of grammar are they using. Could you please explain it in detail and give me some similar examples?