i opened one of my sunflare files in notepad and it showed this
$Sky::sunFlareTopTexture Add-Ons/SunFlare_Cinematic/OrangeFlare.png
$Sky::sunFlareBottomTexture Add-Ons/SunFlare_Cinematic/OrangeFlare.png
$Sky::sunational socialistmuth 167.51
$Sky::sunElevation 145.918
$Sky::sunFlareColor 1.000000 1.000000 1.000000 1.000000
$Sky::sunFlareSize 1.0
SunFlareTopIdx 5
SunFlareBottomIdx 3
so yeah, its just a weird text file