Hello Isaac
Not even sure you can use Legacy mode in Android 11 for file read or indeed if you can use the path that you show, but even if you can, you would have to maintain two sets of paths to comply with Android 11 - not worth the trouble unless of course your App is never going to be used on Android 11.
The file should either be stored in the ASD (App Specific Directory) or an Android Shared Folder.
Concerning spaces in Directory names, they are not necessary and best avoided, though you could if you wish try replacing spaces with %20.
Please read Anke's Guide: