Where are the files stored?

[Anke]

@kopernikus

Where is the mistake?

See e.g. here:

I want to open a pdf file in app inventor

Note: When you test with Companion first, you must delete the PDFs while running Companion on Android 11+. Otherwise you'll not able to test with the APK, because the PDF files are then created by another app (Companion) and connot be overwritten with the new app (APK). Also you must request WRITE permission on devices with Android < 11.

Summary

<a class="lightbox" href="https://community.appinventor.mit.edu/uploads/default/original/3X/d/8/d8b606dab070e0440dc0f5b84aee2ea045d…

Crear o grabar o descargar archivo en carpeta download del movil (regarding record or download file in mobile download folder)

This block is only needed if you test with Companion first (before testing with the APK). So you just need to run this block with Companion (Do it) to remove the file before testing with the APK. If the file was first created using Companion on Android 11+, you will no longer be able to overwrite it with another app (Note: the APK is a different app than the Companion app).