One of our Mac user (macOS 10.12.6) is working together with some other guys who use Windows. The data they are working on resides on a central server which the Mac guy connects to via SMB.
Microsoft Office creates lock files when someone opens an Office document. When the document is closed, these lock files are also removed. The lock file contains the name of the user who has the file opened. With this mechanism Office is able to show a dialog like "You can't save this file as it is currently opened by XXX". The filename is
~$<original file name>, so
test.xlsx has the lock file
The problem is that those files are still visible on the Mac, even when the Office document is already closed. I crosschecked the folder contents from a Windows VM and wasn't able to find the lock files. Also the guy, which the Mac claimed to have the file open, actually didn't had it open.
I have no idea why those files are still shown on the Mac when they actually aren't present anymore. Could this be related to the
~ sign in the name? Or do we have to add some mount options to the SMB share?
[Edit] The computer is connected via Gigabit Ethernet, the building is connected via 10G fiber to the data center. Throughput to the SMB share was around 80MB/s the last time I measured. So, I guess, this doesn't count as slow connection.
[2nd Edit] I don't know about the OS of the central server. But the Mac is connected to an Active Directory which is provided by Windows server (at least I have remote access to a Windows machine where I can manage my department users). The local user account is not connected to the AD, but when mounting the remote share, an AD user is used for authentication.