xml newbie question

what actually is the purpose of having xml pages in the local hardisk? like the codes below ...

<?xml version="1.0" ?>
- <BitComet Author="RnySmile" Version="0.1">

- <FileList SaveLocation="C:\Program Files\abc" StandAlone="false">
<FileEntry RelativePathName="cover.jpg" Size="180392" StartAt="0" Priority="0" LastWriteTime="1086793744" />
<FileEntry RelativePathName="abc" Size="1299796718" StartAt="180392" Priority="0" LastWriteTime="1086883376" />
</FileList>
- <BitFieldStatus TotalLength="1299977110" PieceLength="262144">
<Placement>40:990,80:2277,120:986,160:1687,200:3066,240:2345,280:3720,320:394,361:4565,402:4062,443:4056,484:43 82,525:4369,566:4797,648:4216,689:4247,</Placement>
- <BitFieldInPiece>
<Slice Index="986">f7c0</Slice>
<Slice Index="990">e600</Slice>
<Slice Index="1687">ff00</Slice>
<Slice Index="2277">ffc0</Slice>
<Slice Index="4247">ffc0</Slice>
</BitFieldInPiece>


thanks a lot

XML is now being used by lots of programs to store just about anything. I use KDE on FreeBSD, and the open source programs seem to use it more often than not. I have XML files that store program settings, XSL files that store how email should look in my email program, and XML files that determine how Kate (text editor) should color code program source code.