I am running Office 365 ProPlus 16.0.6001.1038 (64 bit) on Win 10 Pro (64 bit). I recently upgraded from Office 365 ProPlus 2013 (32 bit) in order to handle larger data sets in PowerPivot data models.
After upgrading several of my files and data models, I was able to open the data models in PowerPivot, refresh data and manipulate my pivot tables and charts. However, when I would click to save or exit the file without saving I would get the following message:
Sorry, PowerPivot can't open the Data Model because there was a COM exception while opening a workbook on a corrupt installation of Excel. Click Details for more information.
Details:
============================Error Message:============================Object reference not set to an instance of an object.============================Call Stack:============================ at Microsoft.AnalysisServices.BackEnd.DataModelingSandbox.HandleRegionalSettingsChange() at Microsoft.Office.PowerPivot.ExcelAddIn.InProcServer.LoadSandboxAfterConnection(String errorCache) at Microsoft.Office.PowerPivot.ExcelAddIn.InProcServer.LoadSafeSandboxAfterConnection(String errorCache) at Microsoft.Office.PowerPivot.ExcelAddIn.InProcServer.LoadOLEDBConnection(Boolean raiseCompleteEvent, String errorCache)============================I have tried the Quick Repair, Full Repair, Uninstall & Reinstall but still get the same results. Once the issue does happen, if I do not close the file and go into PowerPivot, all of my data models are gone and PP is blank. Unfortunately
I did not realize this the first couple of times and saved my files only to find the data models gone on reopening and only static pivot tables/charts remaining. My backup files are currently worthless because I can't save them after refreshing without
the data models being erased.
I thought it might be related to older files that I upgraded the data models. However, I created brand new files with new data models only to have the same issue occur.
Please advise as I need to refresh my models and populate dashboards!
Thanks,
RL