How to access android file system using Appium/Selenium?

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http://stackoverflow.com – In my native android app, there is a file to be downloaded while pressing one button and it will be stored in default location: /sdcard/Download But in my test data i already have calculated checksum of generated file. I need to compare checksum of downloaded file to my test-data? I have one approach, is to handle success message at application level when file download completes, but this is not proper way to verify. I had tried with driver.set/getFileDetector but that did not help me. So is there any way to get access of android file system using appium? Thanks, Priyank Shah (HowTos)