Using an SD card or DBI (Double Backend Installer) over USB-C, mount the XCI file. DBI has a specific "Run MTP responder" mode that treats the XCI like a USB drive. Install to the NAND or SD card.
While we don't condone piracy or copyright infringement, we understand that some users may be looking for a free XCI download of Beyblade X. However, we must emphasize that downloading copyrighted content without permission is against the law and can result in severe consequences. BEYBLADE X XONE Switch XCI Free Download