Yes, If you look (use the forum search too)there is a Demo with code example of the Xiao Grove Expansion Board, It allows an external SPI flash chip to be added to the bottom of the board. The examples both Nrf52840 and Xiao Esp32C3 use the Adafruit SPI-Flash LIB.
It is similar to the Adafruit BO, so have a Look there and at the Wiki for them both.
and Here…
HTH
GL PJ
Post up your code using the code tags " </> " above , paste it in there. Lots of smart folks here will help.
PJ 
