The Save command allows you to save the current document to disk. If the document has not been saved, this option will have the same effect as the Save As command.
To save the current document:
In the File
menu, select Save.
or
In the Standard toolbar, click on the Save icon. You can also use a shortcut by simultaneously pressing on the keys CTRL+S (Refer to list of shortcuts).
If you wish to save an existing document under another name or in another location, use the Save As command.