Collabora Online
Collabora Online is a tool for collaborative editing of office documents. We provide Collabora Online as a plugin for Cloud-Seafile – direct login to Collabora itself is not possible.
When you click on an Office document stored in Seafile in the web interface, it will automatically open in Collabora Online.
Editing office documents
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Suitable document formats
In the web interface of Seafile, users can click on an Office document to edit it online and collaboratively. Collabora Online is the software used for this. The following file formats can be opened:
- DOCX-, XLSX-, PPTX- and DOC-, XLS-, PPT-files (MS-Office formats)
- ODT-, ODS-, ODP-files (OpenDocument formats)
The files are automatically locked when they are opened and remain stored in Seafile.
Note: It is not possible to edit an Office document in Collabora Online and locally synchronised at the same time, as in this case the changes made in the file cannot be communicated between the editors. As a rule, simultaneous editing of this type is prevented by file locks, but can still occur under certain conditions (e.g. an interrupted network connection).
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Available fonts in Collabora Online
Collabora Online includes the Liberation fonts, among others. These are equivalent in width with the licence-protected fonts ‘Arial’ (Liberation Sans), ‘Courier New’ (Liberation Mono) or ‘Times New Roman’ (Liberation Serif). In addition, ‘Carlito’ is available as a equivalent in size alternative to ‘Calibri’.
The font ‘Rotis’ is not available in Collabora Online for licensing reasons.
If it is necessary to use a specific font for a document that is not included in Collabora Online, the final formatting of the document can be carried out on a local computer on which the font is available. -
Autosave
Documents opened in Collabora Online that have been modified are automatically saved in Seafile every 5 minutes.
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Duration of an editing session
The maximum duration of an editing session in Collabora Online (i.e. the duration for which a document can be open continuously) is 10 hours. An information message is displayed shortly before this period expires:
![Shortly before the session expires, an information message will appear in Collabora Online, indicating that the session is about to expire.]()
![Shortly before the session expires, an information message will appear in Collabora Online, indicating that the session is about to expire.]()
![Shortly before the session expires, an information message will appear in Collabora Online, indicating that the session is about to expire.]()
In this case, the session should be renewed promptly. To renew the session, it is sufficient to reload the page in the browser. Alternatively, the document can be closed and reopened.
If the session has already expired, this will be indicated by a separate info message:![When the session expires, Collabora Online displays an information message to this effect.]()
![When the session expires, Collabora Online displays an information message to this effect.]()
![When the session expires, Collabora Online displays an information message to this effect.]()
In this case, no further changes should be made to the document, as these cannot be saved in Seafile (all changes older than 5 minutes have already been saved by the automatic saving process). Instead, the document should be closed and reopened to start a new session.
