Board installation problem

I have just bought the Seeeduino Xiao board and was trying to get it to work with the Arduino IDE.

I have put the following URL into the additional boards manager list of URLs but there’s no seeed board showing at the boards manager.

I would be very grateful if anyone can help to resolve this issue.

Regards,
tasnim

Hello, could you tell me which board are you mentioned?

i am trying to use
SEEED XIAO SAMD21 …

You need to follow this guide first to add the url in the preferences.