How can i reset my Libre Office Calc setting

I am using Libre Office Calc for my Excel work.

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I can not see the format color in on Libre office installed @My System.

but on my Colleague System who uses the same Libre Office i can see the Format color.

I must have accidentally done some format changes, how can i get it back.

@JohnSun Yes that was the problem. Thanks for u r comment. U can add a solution on the same line so that i can accept it as best answer.

Please, look at View - Value Highlighting. Is it this option set to OFF?