ONLYOFFICE Docs Enterprise Edition with Mattermost Connector allows you to open, edit, and co-author office documents in your Mattermost chat using ONLYOFFICE Docs. It includes ONLYOFFICE Docs which is a powerful online editor for text documents, spreadsheets, and presentations. Create complex documents, professional spreadsheets and presentations. Popular Office and document formats supported: docx, xlsx, pptx, odt, ods, odp, doc, xls, ppt, pdf, txt, rtf, html, epub, csv. Fully compatible with OOXML (Office Open XML) formats. Allow your users to edit, share and collaborate on documents online, in-browser, within your own application. Differentiate your offering by re-branding and customizing the editor.