A CSV file does not have any of the items you want.
Just look at it what you posed. The only metadata it has is the first line, which most people use as the NAME of the variables.
The TYPE or storage LENGTH or whether or not you need to use an INFORMAT to read the string from the CSV or not, or whether or not you need to attach a FORMAT to display the values in a way that humans would like to see is NOT provided.
The best you could do is GUESS what values could work. But knowing what the creator of the file intended is not possible.
Ask the file creator to provide the metadata you want in a separate file.
If you must GUESS you could try using PROC IMPORT. Or write your own logic, such as https://github.com/sasutils/macros/blob/master/csv2ds.sas
... View more