Calculate date

I need help calculting a dta.

My data is in the following format

10
89
17
10


The above means 10 days ago, 89 days ago, 17 days ago, etc from
01.16/2007. I need to claculate the exact dates.

so 10 should be conversted to 01/06/2007 and so forth.

I appreciate your help. Thank you.

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