testing/scenario_app/android/app/src/main/res/xml/data_extraction_rules.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Exclude all files from backup -->
<data-extraction-rules>
    <cloud-backup>
        <exclude domain="root" path="."/>
        <exclude domain="file" path="."/>
        <exclude domain="database" path="."/>
        <exclude domain="sharedpref" path="."/>
        <exclude domain="external" path="."/>
    </cloud-backup>
    <device-transfer>
        <exclude domain="root" path="."/>
        <exclude domain="file" path="."/>
        <exclude domain="database" path="."/>
        <exclude domain="sharedpref" path="."/>
        <exclude domain="external" path="."/>
    </device-transfer>
</data-extraction-rules>