Can someone explain to me what I should do next.
1. I downloaded everything except this: Master RealTracks Content Installer (Pro 2021)
To use the "RealTracks Master Installer", first download the RealTracks files below. The Master Installer is a convenient way to install downloaded RealTracks files (realtracks*.exe). You do not need to use this file if you are downloading files via the Band-in-a-Box "Download Manager

2. Can you explain to me about this: The following RealTracks files can alternatively be downloaded using the Band-in-a-Box Download Manager. First, download Band-in-a-Box, run it (C:\bb\bbw64.exe), and activate (Help menu | Activate Band-in-a-Box). Then, run the Download Manager (Help menu | Utilities | Run Download Manager).

3. I downloaded all 10 of them

So now what should I do. I haven't ran/open nothing yet.

Thank you.