I found
https://www.animoog.org/2016/06/24/step-by-step-instructions-to-install-third-party-animoog-presets-and-timbres-with-ifunbox/
but it appears to be out of date. I installed the latest iFunbox and there is no “App File Sharing” folder at the root of my ipad. And if I click the “open folder” icon for the Animoog app, I get message “fail to open itunes file sharing”.