Hi @Billy
Welcome to our forum!
As far as I know, there is no direct way to convert a ".emltpl" file to a ".oft" file, as they are different formats used by Outlook for Mac and Outlook for Windows, respectively.
Please kindly understand that many functions are not designed at present. To get this feature more quickly, I have found a post in feedback collection website and you could vote for it. Many features of our current products are designed and upgraded based on customers’ feedback. You can also make suggestions on that website and hope Microsoft will notice this in the future. Thank you for your understanding and support.
As an alternative, it is recommended that you create an email template in a word processor (such as Microsoft Word) and save it as a ".docx" file. You can then send the .docx files as attachments to recipients, who can open them in Word and copy the content into a new message in Outlook for Windows. They can then save the message as a ".oft" file.
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