Your example looks fine to me. It is just that the numbers in your second column are too large to display using the default BEST12. format. Just use a different format to display them.
But they also look like they might really be identifiers instead of numbers that you are going to use in calculations. In that case if you convert them to strings in Excel then SAS will import them as character strings instead.
Your third column is NOT a date in Excel, why would you expect it to appears as a date in SAS?
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