The file ///sdcard/ path is really a tools characterized as an offering advantage of seeing the files in the internal storage of their Android gadget from the browser.
Most smartphones come preloaded with apps that allow you to access files from the MicroSD card slot. These include contacts, photos, music, movies, etc. However, these apps usually don’t show up when you go into the settings menu. As such, you won’t be able to see the files inside the SD card.
To solve this problem, you should know how to view files on file:///sdCard/. Once you figure out how to open files on file: ///SDCard/, you’ll be able to access your data without having to worry about missing files or folders.