Made to be used with Flipper just unzip & drag the folder (Amiibo Database 2018 - 2022) into NFC folder
Best way to select through Amiibo's is using Flipper Browser (Down arrow press then goto NFC clicking right arrow)
https://www.youtube.com/watch?v=zRv7FZUCQng
Developer's build should fix any issues with certain Amiibo's that were not working properly because of read & write amiibos needed to function on flipper flipperdevices/flipperzero-firmware#1179
You will need a program to read .zip file like 7-Zip OR WinRAR to unzip the folder
SD Card/nfc/
However you can use qFlipper but it's very slow!! Open qFlipper and connect your flipper. *Please note that your flipper should already be updated to the latest version. I'm on version 0.58.1-Unleashed
In the file system you are going to copy the Amiibo database into your NFC folder. You can right click and choose “upload here…” or drag and drop it into the window.