give me inventory management and quality control excel for this Exhibit $1$

Fan Variants Manufactured by Airvent Fans Co$.$

All the $7$ models of fans are available in $4$ colors: White $($W$),$ Ivory $($I$),$ Brown $($B$),$ Maroon $($M$).x$ in the model

variant can take any of these four color codes.

For simplification: downrod length is only one $=400mm$