Importing Files
Use
You can use a number of methods to open (load) and view supported files.
If you select a specific type of file to open (file “format”) and the file contains import properties, the Settings button is enabled. The Settings button allows you to modify the import properties and then open the file with your settings applied. Note that if you modify the import properties for a particular format, those settings are applied to any file of the same format when it is opened or reloaded.
When opening files, if the currently opened file has not been modified, you can open another file by a single-click. If the current file has been modified, for example, if materials, textures, or animation has been added, you must double-click another file to open it.
If the selected file takes a long time to open, you can cancel the opening operation.