Gantt Chart Template for Excel
This Gantt Chart Template for Excel is a simple spreadsheet that makes creating project schedules easy. The trial version contains a protected (locked) worksheet with limited functionality, but it can still be used to create basic project schedules.
You can add as many tasks/subtasks as you need by copying and inserting rows. The chart shows 8 months at a time, but the scroll bar makes it easy to change the range of dates displayed. You can create task dependencies using spreadsheet formulas.