BlobData Load(const std::string& containerName,
              const std::string& blobName );

using Microsoft::Xbox::Wrappers::GameSave;

Provider provider = new Provider();

if(SUCCEEDED(provider->Initialize(userHandle, mySCID))
{
   std::vector<std::string> containers = provider->QueryContainers("Save slot 1");
   
   if(containers.size() == 1)
   {
      BlobData data = provider->Load("Save_slot_1", "progress");
      
      if(!data.empty())
      {
         // Read the data into the game.
      }
      else
      {
         // Unexpected because there should be
         // only one blob in the container.
      }
   }
}