Produce Gantt charts from Microsoft Excel. The Gantt Chart Builder System provides a system to build professional quality Gantt charts without the need for Microsoft Project or similar products.Charts can be constructed with either Microsoft Excel or Access. This version is the Excel version. Quite often, your data is present in a database and the production of such charts has been extremely difficult without expensive add-ons.Excel charts can be constructed and then exported in either image or spreadsheet format. This allows all the features and flexibility offered by Microsoft Excel to be used with your constructed Gantt chart. Full control is available on the colour of each individual line item. That is to say, if you like, each and every bar can be a different colour. Therefore, significant items can be highlighted to your audience. Resolution available is from yearly down to hourly.