Struggling with sound recorder

[Taifun]

@themplanetz

Can I access the location where the file was saved on my phone manually?

yes, use total commander

play.google.com

Total Commander - file manager

Android version of the desktop file manager Total Commander (www.ghisler.com)...

Free

see also here

No guarda el archivo TXT

it looks like you store the files in the ASD - application specific directory... so you should look for them there... see also how to still be able to see the files on Android 10+ devices here remember: starting with SDK30 you should follow the new Android file access restrictions and save your text files in ASD or if you like to use them in other apps then save them in shared storage like /Document or /Download see also the overview by @Anke here Taifun

@themplanetz

Also if the app is to be used by different people will this method create problems or should it work fine for everyone downloading the app?

it should work fine for all Android versions

Taifun