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:
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.