Open Document Format (odt, odp, ods) Viewer
This viewer lets you view Open Document Format files online without leaving your browser.
You can view a document, presentations, spreadsheet file for Open Document Format.

*Supported formats: odt, fodt, ott, odp, fodp, otp, ods, fods, ots, doc, docx, xls, xlsx, ppt, pptx...

Provides connect with Google Drive. You can open document files from Google Drive.
This Open Document Format Viewer does not save or share the file you select. It only works locally without going through the server. (HTML5)
Drop a file here.
ODF is the format used by office suites like OpenOffice and LibreOffice.
Text documents (.odt), as well as spreadsheets (.ods) and also presentations (.odp) are supported, including support for complex formatting and embedded images.

The Open Document Format for Office Applications (ODF), also known as OpenDocument, is an XML-based file format for spreadsheets, charts, presentations and word processing documents.
It was developed with the aim of providing an open, XML-based file format specification for office applications.
Office File Viewer (Office Online)  
(free O local file uploads/1 Day)

2017, Open Document Format (odt, odp, ods) Viewer