This page present some information regarding the post-treatment of results.

Elmer can export results in vtk or vtu formats. The following solver has to be added and run after all other solvers:

Solver 17
  Exec Solver = After TimeStep
  Exec Interval = 2
  Equation = "result output"
  Procedure = "ResultOutputSolve" "ResultOutputSolver"
  Output File Name = String "myFile.vtu"
  Output Format = String vtu
End

More information regarding this solver can be found in the Elmer documentation. All information regarding the Paraview software given here.