Power BI desktop cannot open existing reprt

[pmumford]

The Decoder Fetch Uncompressed Data failed with error code 9, error description 'DecoderCorruptedData'. An error occurred while attempting to load the dataset.

This error code displayed while trying to open existing power BI report

[v-nmadadi-msft]

Hi @pmumford ,

I wanted to confirm if the solution provided by was helpful and resolved your concerns. If you have any further questions or issues, please feel free to reach out to us, also if this post helps, then please give us Kudos and consider Accept it as a solution to help the other members find it more quickly.

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[v-nmadadi-msft]

Hi @pmumford 

I wanted to check if you had the opportunity to review the information provided. Please feel free to contact us if you have any further questions. If my response has addressed your query, please accept it as a solution and give a 'Kudos' so other members can easily find it.
Thank you.

[v-nmadadi-msft]

Hi @pmumford 

May I ask if you have resolved this issue? If so, please mark the helpful reply and accept it as the solution. This will be helpful for other community members who have similar problems to solve it faster.

Thank you.

[v-nmadadi-msft · Accepted solution]

Hi @pmumford 

If the file was shared (over email or any other medium) then try re downloading it,
or if it was published to Power BI service try re downloading it.
Other common troubleshooting steps are to clear the cache as mentioned in this document
Solved: File contains corrupted data - Microsoft Fabric Community

Perhaps you can try opening the file in a different system to pin point weather the issue is file specific or system specific.

If not, rather than directly double clicking .pbix file, open Power BI Desktop, click File -> Open -> Select the corrupted pbix file. If you can see a yellow ribbon saying “open in autorecovery mode..” Click on it and the file will be opened with the version before it got corrupted. Also, you can go to the auto recovery folder to see if there is any recovery file there.

Another option is to right click the file, then choose [Restore previous versions], and it shows the older version saved before and can be opened successfully. 

If the issue persists and if you are sure its an issue with power BI you can trying raising a support ticket
How to create a Fabric and Power BI Support ticket - Power BI | Microsoft Learn

Please let me know if the issue continues after you have completed the troubleshooting steps mentioned above.

Did I answer your question? Mark my post as a solution, this will help others!
If my response(s) assisted you in any way, don't forget to give "Kudos"

Thanks and regards

[Uzi2019]

Hi @pmumford 

Try this solution.

https://community.fabric.microsoft.com/t5/Desktop/File-contains-corrupted-data/td-p/548620

https://community.fabric.microsoft.com/t5/Issues/Open-pbix-failure-Decoder-Fetch-Uncompressed-Data-f...

I hope I answered your question!