Trying to get file dowload to work

app/src/main/res/xml/backup_rules.xml

@@ -1,13 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?><!--
-   Sample backup rules file; uncomment and customize as necessary.
-   See https://developer.android.com/guide/topics/data/autobackup
-   for details.
-   Note: This file is ignored for devices older that API 31
-   See https://developer.android.com/about/versions/12/backup-restore
--->
+<?xml version="1.0" encoding="utf-8"?>
 <full-backup-content>
-    <!--
    <include domain="sharedpref" path="."/>
    <exclude domain="sharedpref" path="device.xml"/>
--->
 </full-backup-content>

app/src/main/res/xml/data_extraction_rules.xml

@@ -1,19 +1,9 @@
-<?xml version="1.0" encoding="utf-8"?><!--
-   Sample data extraction rules file; uncomment and customize as necessary.
-   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
-   for details.
--->
+<?xml version="1.0" encoding="utf-8"?>
 <data-extraction-rules>
     <cloud-backup>
-        <!-- TODO: Use <include> and <exclude> to control what is backed up.
-        <include .../>
-        <exclude .../>
-        -->
+        <include domain="sharedpref"/>
     </cloud-backup>
-    <!--
     <device-transfer>
-        <include .../>
-        <exclude .../>
+        <include domain="sharedpref"/>
     </device-transfer>
-    -->
 </data-extraction-rules>