LibreOffice 6.4.2.2 (6.4.2002) (261 MB)・・・済 https://www.libreoffice.org/ https://www.libreoffice.org/download/release-notes/ Mac OS X x86_64 (10.10 or newer required) Opera 67.0.3575.97・・・済 https://www.opera.com/ja/download?os=mac