How do you mod Sims 3 nowadays?

I am tired of looking for the correct way.. I have been looking at multiple videos and explanations and my mods have yet to work. Does anyone know the up to date way to intall sims 3 mods? Thank youu%26lt;3How do you mod Sims 3 nowadays?
there are two ways of installing mods, depending on the file type:



1. .package files: http://simswiki.info/wiki.php?title=Game鈥?/a>



this is the best explanation, step by step



2. .sims3pack these files you just need to double click after downloading, they will install themselves

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