I am working on a Power Automate flow that needs to extract the latest added row from an XLSB file and transfer the data to a SharePoint list and an Excel template.
Since Power Automate does not support XLSB files directly, I am considering two approaches:
- Use an Office Script in Excel Online to extract the latest row from the XLSB file.
- Convert the XLSB file to XLSX first, then use Power Automate’s
List rows in a tableaction to extract the data.
Which approach is better for extracting data from XLSB – using an Office Script in Excel Online or converting XLSB to XLSX first?
If using an Office Script, how do I ensure the script runs even if no new data is present?
If conversion is the better approach, what is the best method to automate XLSB to XLSX conversion?

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