PowerPivot Metadata Restored
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This dialog box is displayed in the rare situations in which PowerPivot data becomes corrupted. The source data is not affected in this case, but the data in the PowerPivot window (and any PivotTables or PivotCharts that are based on it) can no longer be used. If data is corrupted, provides three options:
Do not change the workbook in any way. You can still work with Excel data in the workbook, but you will get an error message every time you open the workbook.
Recover the structure of the PowerPivot data
Delete the PowerPivot data and recreate the structure (also known as the schema) of each PowerPivot table. The structure that is recreated is based on the version of the workbook that was most recently saved. The recreated structure will not reflect any changes that were saved by AutoRecover.
Data is not automatically restored. If you want to continue to use a table in your analysis, you must do the following after the table structure is recreated:
For imported data, refresh the data so that PowerPivot will re-import it. For more information, see Manually Refresh Data in a PowerPivot Workbook.
For copied data, use Paste Append to paste the data back into the table. For more information, see Copy and Paste Data to PowerPivot.
For linked tables, make sure that the link is still established and the data is updated. If the link is broken, recreate it. For more information, see Add Data by Using Excel Linked Tables.
Delete the PowerPivot data and continue to use the workbook
Use this option if you no longer need to use the PowerPivot data but want to continue to use the Excel data in the workbook.
Keep the following issues in mind if you plan to restore data:
Underlying data sources (such as a remote database server) must be available so that PowerPivot can query them.
For security reasons, the metadata extracted from servers will not contain password information. You must specify the password again in order to refresh data. For more information, see Edit the Properties of an Existing Data Source.