I have a directory with about 300 .sxc files in it. Now that I’ve upgraded LO, when I edit one of those files it saves it in .ods format.
I could not find a way to tell LO to save it as a .sxc file. Also I could not find a batch-job style way to convert all the .sxc files to .ods.
I wound-up opening 20 .sxc files at a time, doing a crtl-shift-S one each one, telling it to do a save, and then doing a ctrl-W to close the file.
Yeah, - it was a PITA but I got them all converted. I could have down-graded to the previous version of LO but I decided to bite the bullet and bring things up to current standards.