PowerPivot for Excel 2013 error when opening the Manage Window

We’ve had reports of an error when trying to open the PowerPivot for Excel 2013 'Manage' window after installation. This error does not happen for an Admin user.  The message received is:  "We couldn't load the Data Model. This may be because the Data Model in this workgroup is damaged"           In this circumstance, originally, the reason for this…

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Error installing PowerPivot – "This add-in requires Excel 2010"

When trying to install PowerPivot for Excel 2010 you may receive the following error message: Setup is missing prerequisites:This add-in requires Excel 2010. If you have 32-bit Excel, you must install the 32-bit version of the add-in. If not, you must install the 64-bit version.This add-in requires that the Office Shared Features component of Microsoft…