... To do this select File in menu bar and then Save As... in drop-down menu. As a result the Saving dialog box will appear. ... To see the list of files with desirable extension in chosen folder define the type of extension with the help of drop-down list File type at the bottom of the dialog box. ... The name of the file will appear in File name dialog box. ... In case you want to save the file with new name type it in the File name dialog box. ... Click on Save button to save the file. ...