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msam1977_SM's avatar
msam1977_SM
Frequent Visitor
1 year ago
Solved

How to Edit or Download a Large Semantic Model (Incremental Refresh Enabled)

Hi Community,

I have a Power BI dataset published in the service that is enabled with Large Semantic Model Storage Format and Incremental Refresh.

 

When I try to download the PBIX from the Service, I get the error:
"This file can't be downloaded yet."

I understand this is by design for large models, but my challenge is that I need to edit the model because one of the tables stores data in JSON format, and I need to make updates.

 

Questions:

  1. Is there any way to temporarily disable Large Semantic Model Storage Format, download the PBIX, make changes, and then re-enable it?
  2. If I instead re-publish from a local PBIX, will that overwrite and break the existing dataset (which is being used actively in reports)?
  3. What is the best practice for making structural changes to datasets that are already in Large Model format with incremental refresh enabled?

The goal is to make sure I can edit the model without disrupting the existing reports and usage.

Any guidance from people who have faced this would be very helpful.

Thanks in advance!

 

  • - You can't download a PBIX once Large Model + Incremental Refresh is enabled—it's by design.
    - You can't disable Large Model format temporarily.
    - Re-publishing a local PBIX will overwrite the dataset and may break connected reports.
    - Best practice: Keep a local PBIX as your source of truth, use XMLA endpoint or deployment pipelines to make safe edits.
    - For JSON table edits, stage and flatten locally before publishing.

2 Replies

  • Shahid12523's avatar
    Shahid12523
    Community Champion

    - You can't download a PBIX once Large Model + Incremental Refresh is enabled—it's by design.
    - You can't disable Large Model format temporarily.
    - Re-publishing a local PBIX will overwrite the dataset and may break connected reports.
    - Best practice: Keep a local PBIX as your source of truth, use XMLA endpoint or deployment pipelines to make safe edits.
    - For JSON table edits, stage and flatten locally before publishing.

    • msam1977_SM's avatar
      msam1977_SM
      Frequent Visitor

      Thank you, Shahed. The issue I’m facing now is this: as you mentioned, I opened the Semantic Model in Tabular Editor via the XMLA endpoint, which is correct. However, when I try to modify any queries, everything appears disabled—such as the source, and source type.
      How would you suggest making changes in this scenario? thanks