I once downloaded some .rar files off the 'Net which I thought I'd have no trouble to unpack, since I've got rar here. Come to find out, newer WinRar, which is likely what someone used to make the archive, uses a different format. I had to download some trial version of WinRar and run it under Wine (not being aware of a Linux command line WinRar). Don't blame Linux - this is another example of formats changing in the Windows world in order to keep people chained to Windows; that is, lock-in
. When you throw your hands up in the air and resort to using Windows, they've won.
BTW, the difference in the "e" and "x" extraction options usually means without or with full path names, assuming they were included to begin with.