Error message

[Susie1690]

How do you change a error message when formating for a year plus one ex D7+1= year but it saying error or giving date in 1900 

[#2]

@Susie1690 

You did not supply sufficient information.
Here is my attempt at an answer...

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Nothing Left to Lose

https://1drv.ms/u/s!Au8Lyt79SOuhZw2MCH7_7MuLj04?e=sAwbHU

(free excel programs)