Some basics on Android storage system

[patel]

Your tst.txt file is not in a shared folder, then you can not read write without this

How to request and grant MANAGE_EXTERNAL_STORAGE permission

sorry for my preceeding posting, just now I found the tutorial Some basics on Android storage system - #13 by Anke and probaly understood why under appinventor share access worked, and the fact that read access to shared folder is free granted only for files created by the app (appinventor..) boh.. are not these limitations rather excessive?..just to import some list into an app is a pain..