>

>        public static string[,] lines = new string[1,13];
>        static T[,] ResizeArray<T>(T[,] original, int rows, int cols)
>        {
>            var newArray = new T[rows, cols];
>            int minRows = Math.Min(rows, original.GetLength(0));
>            int minCols = Math.Min(cols, original.GetLength(1));
>            for (int i = 0; i < minRows; i++)
>                for (int j = 0; j < minCols; j++)
>                    newArray[i, j] = original[i, j];
>            return newArray;
>        }
>        public static void loadUploadedInvoices(string filename)
>        {
>            var work = File.ReadAllLines(filename).Select(a => a.Split("\t"[0])).ToArray();
>            int rows = work.Length-1;
>            string[,] work2 = new string[rows, 13];
>            for (int r=0; r<rows; r++)
>                for (int c= 0; c<13; c++)
>                {
>                    work2[r, c] = work[r][ c];
>                }
>            lines = AigFundedInvoices.ResizeArray<String>(work2, rows, 13);
>        }
>

>
>
>This kinda works, but I'm copying everything twice. Is there a way to do this by copying only once?

Instead of ResizeArray you could use:

string[,] lines2 = (string[,]) work2.Clone();

But can I ask what you subsequently do with the array ?