Learn about the XLS file format, its extension, and how it is used for project management. Discover XLS file processing, editing, and conversion with Aspose.Tasks. Automate project management workflows using C#, Java, C++, and Python to read, write, modify, and export XLS files....TaskManual), new GanttChartColumn( "Id" , 50 , Field.TaskID), new GanttChartColumn(...