A compressed version of files, popularly known as zipped files are convenient but also prone to errors. So, when you attempt to open such files using freeware ...

When I did a fresh install of XP, I installed Outlook, and then imported a .pst file from my old computer. I had copied the file, labled backup.pst, into my "my documents" folder, and then imported ...

Oh, and yeah, you can't 'open' multiple types of files at once since they would not all 'open' in the same software. I suppose you could make a feature request to Microsoft to add that capability, it ...