Updating data in a linked table is not supported
As well as creating a new chart, you can link a selected data range in your Excel workbook to an existing chart in a Power Point presentation.Simply click the menu in Excel’s think-cell toolbar and click on the chart in Power Point that you wish to link to.By default, a data link is locked from editing to prevent undesired changes to the linked spreadsheet.You can lock cells from data changes, format changes, or both.Then select the desired chart type from the menu in Excel’s think-cell toolbar: When you click on this menu item in Excel, the Power Point window is activated.If Power Point is not yet running, it starts automatically.
When that is the case, the text height specified for the 'Data' cell style in the applied table style will be used.
Note: Text fields in Power Point can contain up to 255 characters.
Any additional text from the Excel data source will be truncated.
In addition to the data, some cells to the left and on top are reserved for category and series labels.
If you are unsure about the exact layout required, simply insert a new chart of the desired type in Power Point and refer to the layout of its datasheet.
Search for updating data in a linked table is not supported:
To unlock a data link, click Locking on the Table ribbon contextual tab.