Converts documents in the old format of $[officename] Writer master documents *.sgl into OpenDocument *.odm documents, and $[officename] Math *.smf into OpenDocument *.odf documents.
将旧格式的 $[officename] Writer 主控文档 *.sgl 文档转换为 OpenDocument *.odm 文档，以及将 $[officename] Math *.smf 文档转换为 OpenDocument *.odf 文档。