I don't think that you should need any special workbook or template but try this Windows (not Excel) setting.
First close out of Excel then ..
It may be in a different place for you but for me
Windows settings -> Time & Language -> Region -> then at the top right:
Additional date, time & regional settings:
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Change date, time, or number formats: -> Formats tab -> Additional settings -> Numbers tab -> Negative number format: -> Choose (1.1) -> Apply/OK until you have closed back out
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Now open Excel again and I believe the wanted option will be there in the Custom number formats area of Excel.