What is the purpose of the wire mesh and is the charger still usable?

Dell laptop charger. The cord from the charger to the wall plug is
fine. Off the other end of the charger which leads to the laptop, the
rubber reinforcer/grommet is broken all the way around at the charger
end. The internal wires and insulation around them are intact, but the
wire mesh that surrounds those wires and their insulation is
completely separated so that there is no connection between the mesh
at the charger and and the mesh under the reinforcer grommet. There is
no damage to the insulation or internal wires, just the wire mesh
between the internal wire insulation and the rubber grommet.

In other words, there are the innermost wires which are surrounded by
the wire insulation. This, in turn, is surrounded by a wire mesh. The
rubber grommet then surrounds all of that. The grommet is broken all
the way around as is the mesh. (The mesh is separated completely.) I
want to know if the wire mesh is part of the connection or if it is
just for strength and protection and to reduce radio interference. I
can't tell by the thickness of the cord if the mesh continues past the
thicker, reinforcing rubber grommet.

Thanks for your opinions and help on this.

Mike