We all use archive file formats like .zip, .rar in order to employ lossless data compression. In a single archive file, we can add several files and folders and considerably reduce the combined size ...

...and it's probably got a really simple answer that eludes me.<BR><BR>Using 7-Zip, I can encrypt a file (say a Word file) so that I have to give a password in order to read it or edit it. <BR><BR>I ...