excelWorkbookChanged added

excelWorkbookChanged is an object refresh method that can rebuild the data of the object. After the workbook is changed, this can be called. Much of the code was from toArray and __construct.
excelWorkbookChanged added

excelWorkbookChanged is an object refresh method that can rebuild the data of the object. After the workbook is changed, this can be called. Much of the code was from toArray and __construct.