How can you load projects to a memory card and back again to a PG/PC?

Instructions:From STEP 7 V5.1, you can save all the data for a project on a memory card using the "Store on memory card..." function and then retrieve it again, to use later on for example, with "Retrieve from memory card...". To do this, you can insert the memory card into a CPU or into the memory card programming device on a PG or PC. However, project data storage and retrieval on a memory card