Anyone has AppleSMC.kext if so pls share

pls guys I am in desperate need , i do not have it in my extensions for somewierd reason. And I think it is importat (because there is a word called SMC and apple), Someone pls share

thx

specs so mod wont ban:

Intel Core i5 4120u

Ram 12gb ddr3

256gb ssd

Mac os Big sur(wanna change SMBIOS to upgrade to Ventura or atleast see ventura)

Current Smbios-MacbookPro 11,2

thx tbh