If what you really mean is "open a file that's not part of an Eclipse project", the Open menu is pretty much it. You can drag from the Windows Explorer to Eclipse explorer views, but that actually copies the file. The standard Eclipse package expects that most of your work will be done inside Eclipse projects. There might be a general-purpose file explorer plugin available, however. Check the Eclipse plugin websites.
"privilege" comes from the Latin words for "private" and "law" (legal) and dates to feudal times. To "claim privilege" meant that you were above the laws that applied to the common people.
Good heavens! What have you done! Here, try to fix it with this tiny ad:
Devious Experiments for a Truly Passive Greenhouse!