By default, all software supports multiple file extensions. LibreOffice Writer supports at least 5 different file extensions. The basic files that LibreOffice Writer supports are .DOTX. However, not all of the extensions listed on the list are always used to save the effects of work in LibreOffice Writer. Very often, files with such extensions are used as source data files used by LibreOffice Writer.
LibreOffice Writer can be used to convert file formats between the file extensions listed below. You can open a file with one of the file extensions below via LibreOffice Writer and try to save it in another file format, also supported by LibreOffice Writer.