can you give us little more information? In what format do you need those x-y coordinates?

Many thanks Icaro. This will surely help

It is very important that you do not use any non-standard characters (e.g. "§$%& " ) in the first row, sheet- and file names. Otherwise you will encounter problems during the ArcGIS-Import.

You can save the data in CSV format and plot them using gvSIG or QGIS software. Here you can see an example

http://www.gistutor.com/quantum-gis/19-beginner-quantum-gis-tutorials/59-how-to-create-a-shapefile-from-xy-data-using-qgis.html