Hi my name is ***** ***** I will be the expert working with you today to help and resolve the problem you have posted.
I am sorry to know that you are facing problem with your computer applications lost.
Let me know what have you tried after which the application got lost.
i am here to assist you. however i had asked you for some information in my previous response that would give me a better idea about the issue you are facing
let me know that did you run any update or program after which the office package got removed