Marcjoe – https://www.techspurblog.com/file-sdcard/

SD memory has its own identifier in file browsers, so the name / address changes depending on how much memory you have. In any case, you can’t access them using the file: /// sdcard / command. It is advisable to use a file explorer to view the documents stored on the SD card.
While perfectly functional, the file: /// sdcard / command has its limitations. First of all, it is not a very attractive system on a graphical level. In fact, the folders will be listed , as well as the files you have stored on the device.

In other words, thumbnails or any other function that helps you locate files more easily will not be displayed. The command or file: /// sdcard / will simply help you navigate quickly without downloading extra applications. As we noted, it is a useful feature, but not for everyone.
file ///sdcard/

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