Is it possible to lock a file with a password?

Is it possible to place a password on a particular file so that if someone has access to your computer they will need a password to open a file?

roksbug wrote:
Is it possible to place a password on a particular file so that if someone has access to your computer they will need a password to open a file?
Not on a file as such; but you can compress it to a password-protected archive (eg, zip) or put it on a password-protected disk image.
Keep in mind that no-one you don't fully trust should have unsupervised physical access to your machine. If you absolutely must needs give them access, let them use the Guest account.

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