If you want to permanently remove one of the audio tracks or set a specific one as the default, you can use MKVToolNix How to Add Dual Audio File on Movies in VLC Media Player

Because these files are usually in an MKV container, they do not require a traditional "installation" but rather a player that can decode multiple audio streams.

: A lightweight alternative known for efficient HD playback on older hardware. 3. How to "Install" and Configure (Playback Guide)

But less knowledgeable users would append install for two reasons:

Note: Always ensure you are accessing media through legal and authorized streaming or purchase platforms to support the creators.