If you are looking for offline files, official digital stores are the safest method to avoid corrupted or malicious archives:
: Buying from Qobuz allows you to download the files DRM-free in your preferred format.
: Most streaming services like Spotify Premium allow you to download the entire album for offline listening within their app.
If you do obtain an archive (like a .rar file) from a trusted community source, you will need specific software to open it: