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Frequent Visitor

Data Refresh Error: The specified package is invalid. The main part is missing.

Hello, I am experiencing an error that I haven't experienced yet.


During a refresh in the PBI Service, I am receiving the below error:


Refresh error.png


The table is similar to any other table in the dataset, nothing unique about it. If I disable the table and disable the refresh for the table, the dataset refreshes correctly. If I refresh in PBI Desktop, the dataset refreshes fine. It is a large dataset and not sure if that would have any impact on this.


After doing some research I do not see any other sources about what this error message means or how to resolve it. 


Thanks for all your help!

Regular Visitor

I was receiving the same error.  


The problem for me was my source file was saved as 'Strict Open XML Spreadsheet' format, not 'Excel Workbook' format. 


Both files are saved as a '.xlsx' format, so you wont easily realize its wrong, so I opened the source file in Excel, 'save as' and change the file type to 'Excel Workbook.xlsx'.  I was then asked if I wanted to replace the 'Strict Open XML' version, and I said yes.


This worked for me and my refreshes were back to normal. 

Thank you.It helped me 🙂

New Member

This may have already been answered, but I was able to resolve this by removing word wrap on my column headers (row 1 for me) in Excel.   I have not tested whether other formatting causes the same error.

Hope this helps


Hi @cnelson,


What is your data source? What do you mean "disable the table and disable the refresh for the table"? Please update data gateway to the latest version for a test.



Yuliana Gu

Community Support Team _ Yuliana Gu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Hello @v-yulgu-msft!


The data source is an excel spreadsheet located in a SharePoint document library.


What I mean't by "disable the table and disable the refresh for the table" was in power query disabling the load and disabling the refresh for the table. This shows that I was able to reduce the issue down to this specific table.


Data Gateway in not needed in this instance because it is a cloud storage location.


I haven't ran across this error before and am not sure what it means nor how to resolve it.




Carl Nelson

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