To start GLASS, run the glass.exe executable on Windows, or glass on Linux or
    MacOS.
    
    How to load a GSS spread sheet file:
    
    To load an existing GSS file, you may use the format.
    
    glass [file] [option]
    
    Example:
    
    c:\temp\glass\glass book1.gss n
    
    The command line paramater n will launch the file in "normal mode"
    
    If a file name is given, both paramaters are required.  
    
    If starting a new book manually, just have an empty gss file that ends with 
    the line "stp 0 0 0 0 0".
    
    If you need to see if the gss file is being parsed correctly, replace the
    n paramater with d.  This will run GLASS in debug mode.
    
    
Working with formulas. Note: The GLASS engine will not process numbers in a cell, if the cell content has been marked as a string and not a number. Formulas: Valid formulas: =avg( ) average value of 2 or more number values example: =avg(a1:a7) =cou( ) count - counts the number of numbers in a range. =flr( ) floor - rounds down number to whole value =max( ) max value of 2 or more values =min( ) min value of 2 or more values =sum( ) sum of 2 or more values Example of =sum( ) =sum(a1,a7) will add two cells a1 and a7 =sum(a1:a7) will add all the cells starting with a1 to a7. Note: any entry in a cell that you don't want to get saved, prefix with double underscores: __