Landsat Level2 Data

I have downloaded Landsat8 On Demand Level 2 Data. This data consist of Level-1 Bands. Surface Reflectance Band, ToA Reflectance Bands, Aerosol Band, Brightness bands
But when add MTL file, it only loads level-1 bands. Any suggestion or help. I want to export the reflectance values from Surface Reflectance Bands…