Help needed regarding mods installation in skyrim

aharsh9703

Distinguished
Apr 14, 2011
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I download an armor mod from skyrim nexus
there were following folders in the file i downloaded
Data >Meshes ,textures ,and a .esp file of the armor
and when i opened data in my game directory there were no such folders like meshes texture an all but there was skyrim-meshes.bsa and skyrim-textures.bsa
i haven't installed any patch of the game or something
please tell me how can i install the mod into the game .
I am playing the game on PC.