To save a working project to a file, click on the Save Project command from the File menu. Alternatively, you may click on the 
button located on the toolbar.
Save project menu command
If this is the first time you initiated the save command (project file was never saved before), LiqIT will prompt you to specify a location and a name for the file to be created using the standard Windows® file save dialog:
File save dialog
If you wish to change the file name from within LiqIT, click on the Save As... command from the File menu. LiqIT will display the above dialog in order to specify the new location and file name.