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Converting XLS Files to XLSX with Power Automate

Erik Svensen shows how you can create a Power Automation flow to convert old-style Excel files (in .xls format) to newer-style Excel files (.xlsx) via a web service:

In the scenario I will use a trigger when an e-mail is received and use a rest API provided by

OBS – This is a paid service where you pay by the minute the conversion takes – price from $0.02 to $0.01 per minute.

Check out the comments for some additional information about the web service, including a free tier.