OnlyOffice, developed by Ascensio System SIA, a company headquartered in Riga, Latvia, is productivity software that includes an office suite, calendar, office social media, customer-relationship management software, and email client. All these can be accessed through a Web browser and run on OnlyOffice controlled server space.
Organizations also can install the applications on their own servers, and their developers can integrate them into their own Web services. The office applications can connect with popular business platforms, such as OwnCloud or Nextcloud.
Fees for the cloud, enterprise, developer, and integration services can be found on the OnlyOffice Website. The company offers its office suite for free, however.
An office suite that is identical to the one offered for the cloud and servers is available through the Google Play store and to iPhone and iPad users, and the word processor, spreadsheet, and presentation applications also can be installed on laptops and desktops running Windows, Mac OS, and Linux distros in a unified suite, called OnlyOffice desktop.
These applications create and render documents in Microsoft Office formats and work offline, storing and accessing documents from the hard drive and drives connected to the computer. They also can connect to the OnlyOffice account, and they also can access Nextcloud and ownCloud.The editors are open source.
OS-College focuses on the the desktop applications and the corresponding Web applications. Most of the articles and videos about the Web version is about the word processor, spreadsheet, and presentation applications. Videos and articles are about the other applications too, but the lion share is about the traditional office suite applications.
The Web pages about OnlyOffice applications are divided in the following sections:
General
Videos and Web pages in this section cover items that apply to all three applications, such as opening a document, and the central management system for both the desktop and online applications.
Word processor
This section covers features and functions for the online and desktop word processors. This includes lists, tables, watermarks, and there is information about the bottom taskbar.
Spreadsheet
Features of the desktop and online spreadsheet applications are here. It also presents universal formulas and mathematical functions that work in other applications as well.
Presentation
Web pages and videos in this section cover the features that are unique to the presentation application. This includes the different themes that can be applied to slides and the various slides.