(TextReader reader = File.OpenText("bina.txt")) {
    var lineCount1 = File.ReadLines("bina.txt").Count();
    x1 = new complex[lineCount1, 512];

    for (int i = 0; i < lineCount1; i++) {
        string line = reader.ReadLine();
        string[] bits = line.Split(' ');

        for (int j = 0; j < 11; j++) {
            x1[i, j] = (x1[j].ToString(bits[j]);
        }
}