1. In the menu bar go to File → Open... and then select the result file from CFS, e.g. results_hdf5/run.cfs
2. Mark the result in the Pipeline Browser and tick/untick the Regions you want to load in the Properties tab
3. click Apply in the Properties tab

Visualizing Field Results

After opening a result file

1. Mark the result in the Pipeline Browser
2. Select which result to display in the drop-down of the Active Variable Controls toolbar

The icon shows if results are defined on the nodes (points) or in the center of the elements (cell symbol).

3. Use the Representation Toolbar to choose the desired appearance

Most useful are Surface With Edges to show element boundaries, or just Surface.