you usually see ### when cells aren't big enough to show all the content. although your worksheet looks ok, i'd try increasing the height of row 1 to see if that helps.
i dont have a clue what im doing if im honest.
such a noob when it comes to excel.
hover you mouse over the line that separates 1 & 2 in the left hand column. you should see pointer change. now just drag down to increase the row height.
edit: you already sorted it...![]()
That Gantt Chart looks like a right faff on if you're regularly changing dates and such.
I've built a mechanism for creating Gantt charts in Excel where you can enter start and end dates and add in dependencies on other tasks if you're interested?