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Power BI - Questions & Answers | Business Analytics & Intelligence | Processes & Tools | Part 7

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Question: What techniques can be used to reduce the file size of a Power BI report? Suggested Answer: Reducing the file size of a Power BI report (.pbix) improves performance, reduces load times, and makes sharing easier.  Key techniques to reduce file size 1. Optimize Data Sources Import Mode vs. DirectQuery/Dual Mode: Use DirectQuery or Live Connection for large datasets instead of importing. If importing, filter unnecessary data at the source. Use Query Folding : Ensure Power Query transformations are pushed to the source (SQL, etc.). Limit Rows : Load only necessary historical data (e.g., last 3 years instead of 10). 2. Clean & Transform Data Efficiently Remove Unused Columns : Delete unnecessary columns in Power Query. Use Appropriate Data Types : Smaller types (e.g., integer instead of text for IDs) reduce size. Replace High-Cardinality Text with IDs : Use numeric keys instead of long text labels. Avoid Complex Columns : JSON / XML columns bloat size—parse them in Po...