How do I load files inside a directory to their respective table based on a column value?

I have multiple file inside a directory. File contains a column [Supplier] which have different value for different file.So I want to load a file to its corresponding table based on this field.

For Example : If [Supplier]= 'A' then I want to load it in table A.

      If  [Supplier]= 'B' then I want to load it in table B.