Not going inside the if loop..

foreach (FileInfo file in filearr)
{
    string name = file.Name;
    string s=file.Extension;
    string filepath = Path.GetFullPath(file.FullName);
    long filesize = file.Length;
    if (s == ".xls" && s == ".csv")
    {
        SqlCommand cmd1;
        cmd1 = new SqlCommand("[uspGetFilesinfo]", conn);
        cmd1.CommandType = CommandType.StoredProcedure;
        SqlParameter param11 = cmd1.Parameters.Add("@fileName", SqlDbType.NVarChar, 50);
        param11.Value = name;
        SqlParameter param12 = cmd1.Parameters.Add("@dirID", SqlDbType.Int);
        param12.Value = invid;
        SqlParameter param13 = cmd1.Parameters.Add("@dirName", SqlDbType.NVarChar, 50);
        param13.Value = txtinvname.Text;
        SqlParameter param14 = cmd1.Parameters.Add("@filesize", SqlDbType.Decimal, 15);
        param14.Value = filesize;
        SqlParameter param15 = cmd1.Parameters.Add("@filepath", SqlDbType.NVarChar);
        param15.Value = filepath;
        cmd1.ExecuteNonQuery();

    }

    else
    {

    }
}