Dowloading .dsf files to Android

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1

I am trying to dowload .dsf files to my Galaxy Note 8. The download progresses normally and eventually i see the file in ‘downloads’. When i open it, ‘no files’. However, the file size is listed accurately and the phone’s storage is reduced by the correct amount. Where is this mysterious file? If i delete it, storage is restored by the same amount. It’s out there somewhere.

Thanks very much,

Paul

2

Please provide the mandatory logs repeating the same here won’t give more needed details.

And screenshots of what you exactly do.