I’m using apktool (and other tools) with an android apk file, to try to find the strings.xml files used for different languages (inside values-** directories). However, I can’t find any languages directories (e.g. values-fr), and I know the app supports different languages. I’m using a phone with Android 8. When I use a phone with Android 4, I do find the values-** directories.
I get strings from apk via Android studio: Build -> Analyze APK -> select APK -> click on resources.arsc -> string
. From table with strings you can copy to excel.