the error is this one, from the defectives files :
org.herac.tuxguitar.io.FileFormatFormatException: java.io.IOException
at org.herac.tuxguitar.io.SongLoader.load(SongLoader.java:59)
at org.herac.tuxguitar.song.managers.SongManager.open(SongManager.java:77)
at org.herac.tuxguitar.gui.actions.file.OpenFileAction$1.run(OpenFileAction.java:48)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:123)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3157)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2859)
at org.herac.tuxguitar.gui.TuxGuitar.displayGUI(TuxGuitar.java:205)
at org.herac.tuxguitar.gui.TuxGuitar.main(TuxGuitar.java:120)
Caused by: java.io.IOException
at org.herac.tuxguitar.io.gp.GP3InputStream.readStringIntegerPlusOne(GP3InputStream.java:543)
at org.herac.tuxguitar.io.gp.GP3InputStream.readSong(GP3InputStream.java:100)
at org.herac.tuxguitar.io.SongLoader.load(SongLoader.java:40)
... 8 more
cannot open file (debian)
