I have downloaded ALOS-1 PALSAR level 1.0 data from data archive from Alaska Satellite Facility. After unzipping files ,I am getting image files,Leader Files,Trailer File and Volume File. All the files have extension of .0__A. I am trying to open the Image file(IMG) through gdal.Open and ReadAsArray() function but gdal is not able to open the data. Kindly suggest what can be done to visualise the data.I am using gdal 2.0.0.