contact forces particle-wall

Hi,

I read in a post "contact force" (node/1511) how to output contact forces particle-wall. I would like to know: is there any way to read that info with paraview?

I added to my input script:
compute fc all pair/gran/local id pos force
dump forcedump all local 500 post/dump.fuerza c_fc[1] c_fc[2] c_fc[3] c_fc[4] c_fc[5] c_fc[6] c_fc[7] c_fc[8] c_fc[9] &
c_fc[10] c_fc[11] c_fc[12]

I've just got one file with info (see the attached) and paraview can not load it. I think it might be a problem with the way I use pizza, I just did it as always:

d = dump("post/dump.chute")
v = vtk(d)
v.manyGran("post/dump.particles.")

Regards