Cyberduck Help / Howto / Mountain Duck / File Locking

Version 3.4 or later required

Mountain Duck supports locking files to prevent conflicting edits from others while a document is open in a editor.

Pseudo locking for protocols with no native lock support using lock owner files

For connections other than WebDAV, we support detecting files opened by others by looking for owner lock files uploaded to the server.

Note: Support is currently limited to files edited in Microsoft Word, Microsoft Excel and Microsoft Powerpoint on macOS and Windows.

References

When a previously saved file is opened for editing, for printing, or for review, Word creates a temporary file that has a .doc file name extension. This file name extension begins with a tilde (~) that is followed by a dollar sign ($) that is followed by the remainder of the original file name. This temporary file holds the logon name of person who opens the file. This temporary file is called the "owner file."

• ​Description of how Word creates temporary files
• ​The document is locked for editing by another user error message when you try to open a document in Word