Assign a Variable for get the files type array of string, and in value put
Directory.GetFiles(“Put_Path_Here”), next use a for each loop, of type string, and iterate the variable, inside for each put a if condition comparing the names you want with the value iterated.
I have created workflow based on your requirement please check and run you will get the what you are expected solution. Before run this workflow in Assign activity change the path where you save the Test folder.