<div style="border: 1px solid rgb(228, 222, 222); margin: 0px 0px 5px; padding: 0.5em 1em; background-color: rgb(249, 249, 249);"><center>'''''This artikel article originally came from Kevin Thackers' archive at [http://www.cpctech.org.uk http://www.cpctech.org.uk].''''' </center></div>
= The Xexor ARC file format =
Xexor is a powerful disc utility written by Richard Wilson for the Amstrad CPC/CPC+.
This will create a file called "disc.arc" which will contain the data from tracks 1 to 13 inclusive.
== Structure of the "ARC" file ==
The "ARC" file is a binary file and will have an AMSDOS header.
9 means same byte for entire sector? 80 is the byte? then there is no compressed sector data
== Compression scheme ==
The compression method is "run length encoding".