用excel绘制精确gantt图

http://www.airstorm.org/blog/2007/08/25/use-aexcel-chart-to-draw-a-timeline-chart/

 

用excel手工绘制精确gantt图

 

http://davidseah.com/pub/downloads/pceo/gantt/dseah-gantt-excel.zip

涂鸦形式的excel甘特图模板（下载地址：excel-zip）

 

http://www.bandwood.com/gbs.htm

Gantt Chart Builder System