If the file has been saved as ODS, this is strange (although there are
minimal chances that the file is broken, but in any case it will be easy
to recover the images as they are stored inside the zipped file). If the
file has been saved as XLSX, then anything might have happened, as the
format is not reliable at all.
Of course, there might be a regression in the package provided by Mageia
but you can easily check if this is the case by downloading the AppImage
LibreOffice package - which runs on any Linux distro - to open the file.
LibreOffice AppImages are here:
https://www.libreoffice.org/download/appimage/.
Best regards.