Yamaha Expansion Manager (YEM) is a free desktop application for Windows and macOS that allows you to manage and install Expansion Packs on compatible Yamaha digital keyboards. Official Download Links
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Yamaha Expansion Manager (YEM) is the utility that lets owners of compatible Yamaha instruments (workstation keyboards, synths, and digital pianos) install, organize, and manage expansion content: voices, performances, and sample/PCM libraries. Version 2.7.0 is a maintenance update that improves stability and device compatibility while simplifying the installation of new expansion packs. version 2
: Ensure your computer is connected to the internet before launching the application for the first time. Yamaha Corporation once you've downloaded the software? Yamaha Expansion Manager V2.7.0 for Windows 10/8.1 Yamaha Expansion Manager 2