ONLYOFFICE Document Server is the previous version (2.5.7) of Windows-based online document editors, comprising viewers and editors for texts, spreadsheets and presentations. They are compatible with Office Open XML formats : .docx, .xlsx, .pptx and offer collaborative editing and commenting.
http://onlyoffice.com

Overview
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ONLYOFFICE Document Server is a freely downloadable open source version distributed under the GNU Affero General Public License.

Functionality
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It comprises viewers and editors for texts, spreadsheets and presentations including:

* ONLYOFFICE Document Editor
* ONLYOFFICE Spreadsheet Editor
* ONLYOFFICE Presentation Editor

Project Information
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Official website: [http://www.onlyoffice.com](http://onlyoffice.com "http://www.onlyoffice.com")

Code repository: https://github.com/ONLYOFFICE/DocumentServer

License: [GNU Affero GPL 3](http://www.gnu.org/licenses/agpl.html "GNU Affero GPL 3")

SaaS version: [http://www.onlyoffice.com/saas.aspx](http://www.onlyoffice.com/saas.aspx "http://www.onlyoffice.com/saas.aspx")