Difficulty in reading file in Android 11

Hi guys,

I’m having trouble understanding how to recover a file from Android 11 storage.

Below are my blocks.

As I read in a guide here on the forum, I don’t need permission for shared folders like Downloads, which is where my file is. Still the Android File manager doesn’t open for me to choose the file, and I have a app for file manager besides the native one.

I have seen other topics and as English is not my mother language or my secondary language, sometimes it is difficult for me to understand things that may seem simple, even using a translator.

Toclarify what I’m trying to do:
I want to click in a buuton and openthe file manager to choose a file.

Thanks in advance.