Hi there,
Yea, takes a couple reply’s then you can.
SD Card is good. Ok, that should run ? If not you may need to explicitly define the pins used for the SD card , the CS especially. If it’s an older demo b4 5.0 IDF change , you more than likely will have to , USE the GPIO pin number in the code instead of a Logical ones like “D2” better GPIO3 is used in this case.
In the Wiki there is a Procedure to create a UF2 drag & Drop file for your ESP32S3 Xiao so I would look to that after you have a handle on it with the SD working, You not using the Camera ? I use it without one. Roll your own IO board
HTH
GL 
PJ 