The ceiling is already open by the user ***
"Has the ceiling already been opened by the user *** Open the file for reading?" Such a message may occur when opening the order file or EasyCiling ceiling if:
If another user is currently working with this ceiling.
The user did not finish working with the file correctly, and the file remained "in editing mode". In this case, you can:
Open the file for reading and save it under a different name.
Switch to using a Network database - in this case you won't have to worry about "file" problems.