If they are not very big, whatswhat's probably your case export it as JsonJSON. Also
Also this makes it portable among all plattformsplatforms.
using Newtonsoft.Json;
[TestMethod]
public void ExportJson()
{
double[,] b = new double[,]
{
{ 110, 120, 130, 140, 150 },
{ 1110, 1120, 1130, 1140, 1150 },
{ 1000, 1, 5 5, 9, 1000},
{1110, 2, 6 6, 10, 1110},
{1220, 3, 7 7, 11, 1220},
{1330, 4, 8 8, 12,1330} 1330};
};
string jsonStr = JsonConvert.SerializeObject(b);
Console.WriteLine(jsonStr);
string path = "X:\\Programming\\workspaceEclipse\\PyTutorials\\src\\tensorflow_tutorials\\export.txt";
File.WriteAllText(path, jsonStr);
}