Hi Steve,
Currently, condtional formattings would be lost if you save the excel file as SpreadsheetML .xml file. We will support this feature soon for your requirement.
Thank you.
Hi,
Thanks for following up.
We will support it soon. Hopefully we can provide the fix within 1-2 weeks time.
Please try the attached version.
The conditional formatting feature of SpreadsheetXml file format is supported now.