Creating a Timeline

Hi all,

I need to create a timeline in excel with the following available data:

Location
Date / Time
Equipment
Equipment Activity
Activity Duration

I have created a 24hr timeline for every location in 5min intervals (using excel cells) showing what equipment was used in each location and the duration of every equipment activity. I have used colour formating and a custom made legend to represent each activity (See attached example, sorry for the poor picture quality, but the timetable for the different activities and the legend is visible). I want to create a timetable to show a weeks worth of data.

The file will be 80Mb - 100Mb if I was to do a weeks worth of data for each location and will become unmanageable. Is there a way to use an XY-Scatter graph or any other graph to create these weekly timelines? Is there another function in Excel I can use?

Any help would be appreciated.

Cheers,
Jay