Saves the active file. The active file is the file currently in view in the tab area. If the file is new and hasn't been saved to disk before, a file dialog appears, where you choose a folder and enter a name for the file. Notice that if the file is part of a project, then it is recommended to save it in the same folder as, or in a subfolder of, the project file. If not, the project file will contain an absolute path, which makes it difficult to move the project to another location or another computer.
Ctrl-S
Available when an unsaved file is in view in the tab area.