Tables are the key to getting the most out of the sheet views in Microsoft Project. A sheet view is a spreadsheet-like representation (in rows and columns) of task or resource information. Tasks or resources are arranged vertically, like a list. The categories of information about each task or resource are arranged in subsequent columns, with each column specifying a type of information, such as start dates or standard rates.
If your sheet view is not displaying the type of information that you want to see regarding your tasks or resources, you can change the entire appearance of your sheet view by selecting a different table for the view. The tasks and resources remain the same, but the categories of information you see about those tasks and resources vary from table to table. For instance, the Cost table displays everything you might want to know about the cost of a task. By switching to the Work table, you can view a variety of information related to the work required to complete a task, such as the total work and the remaining work.