To import a whole simulation, use the File/Import/Simulation menu item.

File → Import → Simulation

In the resulting Choose a file panel, select the appropriate .zip file and click Open, or double-click the file name (Ansys Polyman exports a simulation to a file using a .zip file extension, see Exporting Files). Ansys Polyman will create a new simulation in the project with all associated files as stored during the exportation of the simulation. The name of the simulation will be the same in the current project as in the project from which it was exported.