Someone asked: my operating system is MX-23: a derivative of Debian. The data file was saved as the default XML format! Sneaker Net the data file to PC with Flatpak installed, opened data file, saved it as sglite, Sneaker Net back to main PC, opened without issue. Bruce Top <https://forum.mxlinux.org/viewtopic.php?f=108&t=82899&p=801667#top>