How do I save text in .txt file in internal storage?

[Anke]

@Evan2

how can i save in .txt on sdcard

What do you mean by "sdcard"?
If you mean a removable (mircro) SDcard you can't, because since Android 4.4 (KitKat, API 19) this is read-only.

See also here:

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Before you ask a question / open a new topic please take care of the following points: The forum was previously searched for similar topics / issues. Give a precise (detailed) description of the issue / bug, the goal. Show the (relevant) blocks (images, screenshots of blocks in high quality). Debug your blocks (connect to Companion and right mouse click: → Do it). Name the Android / iOS version running on your (test) device. Do not open multiple threads on the same topic. If you haven't al…