public ITabularBook NewBook()
{
var book = new TestTabularBook();
Books.Add(book);
return(book);
}
public ITabularBook OpenBook(Stream workbookFile)
{
var book = new TestTabularBook();
Books.Add(book);
return(book);
}
public ITabularBook NewBook(string fileName)
{
var book = new TestTabularBook();
Books.Add(book);
return(book);
}