OK now that you have Arduino IDE set up, drivers installed if necessary and you've practiced uploading code, you can start installing all the Libraries we'll be using to program it.
There's a lot of libraries!
And install the following libraries:
This will let you light up the LEDs on the front
This adds a special NeoPixel library that uses DMA so the NeoPixel stuff happens without processor time taken.
This will let you read/write to the onboard FLASH memory with super-fast QSPI support
Our fork of the SdFat library provides read/write access to FAT16/FAT32 file systems on SD/SDHC flash cards.
Our fork of the PJRC Audio library to support the SAMD51