You may know LibreOffice from the desktop - the free and open source office suite (successor to OpenOffice) with over 200 million users worldwide. It's secure and respects your privacy, not sharing your documents with anyone else. It's also available for Android in a simplified form, to view documents in these formats: * Open Document Format (odt, ods, odp, odg) * Microsoft Office 2007–365 (docx, xlsx and pptx) * Microsoft Office 97–2003 (doc, xls and ppt) LibreOffice Viewer also has experimenta