How to import iOS test results to Testiny?

I’m now trying to use the CLI tool to upload the xcreulst to Testiny, but it looks like this file format is not supported? Is there a way we can upload the iOS test results(.xcresult) to Testiny?

iOS test result files (.xcresult) are not supported, currently.
Can you possibly change the output format to something else, e.g. XUnit?

There are tools to convert these result files to junit, I just found the following in a quick search, but we do not have experience with it:
xcpretty

Best regards,
Alex