I downloaded a new style "Firefly.stylx" and I want to use it in my ArcMap. But it seems that I can't add the files with *.stylx formats in my ArcGIS and my ArcGIS only shows *.style .
Should I change my ArcGIS software to new version to be able to use this styles? Is there a way to convert these formats? I also tried to save this style in my "C:\Users\USERNAME\AppData\Roaming\ESRI\Desktop10.X\ArcMap" folder. But it doesn't show it there either.
I was wondering how can I solve this issue.