You can close one model or all open models.
Procedure
Click Close for the relevant model tab.
The model closes and any changes are saved if you click OK.
Click Tab overview. Depending on the view you selected all open files are listed or a preview is shown.
Click Close for each of the relevant models.
If you made any changes that have not yet been saved, you are asked whether you want
to save them.
The model closes and any changes are saved if you click OK.
Right-click on the tab of the model that is to remain open.
Click Close other tabs.
If you made any changes that have not yet been saved, you are asked for each model
whether you want to save them.
The models close and any changes are saved if you click OK.
Please note that not only the model tabs close, but also all other open tabs, such as Explorer or Administrator.
You have closed one or all models.