Reading Directory
string[] fileList = Directory.GetFiles( @"Z:\My Documents\", "*.csv");
Reading files
1.
var reader = new StreamReader(File.OpenRead(@"C:\test.csv"));
2.
using (var rd = new StreamReader("filename.csv"))
{
while (!rd.EndOfStream)
{
3.
var contents = File.ReadAllText(filename)
Try to explore more on Google/CP
Thanks
--RA