private void doit()
        {
            String address1 = "";
            String address2 = "";
            int filenumber = 1;

            using (BinaryReader b = new BinaryReader(File.Open("C:\\Users\\Alan\\Desktop\\charo\\data\\PackTbl\\_out_EN.tbl", FileMode.Open)))
            {
                int pos = 0; //position in the table file
                int length = (int)b.BaseStream.Length; //length of the table file
                int v1 = b.ReadByte(); pos += sizeof(int); //read a byte and increase the position counter
                int v2 = b.ReadByte(); pos += sizeof(int);
                int v3 = b.ReadByte(); pos += sizeof(int);
                int v4 = b.ReadByte(); pos += sizeof(int);
                address1 = v4.ToString("X2") + v3.ToString("X2") + v2.ToString("X2") + v1.ToString("X2"); //convert the bytes to hex, reverse the order, and store as a string
                v1 = b.ReadByte(); pos += sizeof(int); //the first 4 are empty, so get 4 more
                v2 = b.ReadByte(); pos += sizeof(int);
                v3 = b.ReadByte(); pos += sizeof(int);
                v4 = b.ReadByte(); pos += sizeof(int);
                address2 = v4.ToString("X2") + v3.ToString("X2") + v2.ToString("X2") + v1.ToString("X2");
                while (pos < length) // while there are still bytes in the table file...
                {
                    address1 = address2;
                    v1 = b.ReadByte(); pos += sizeof(int);
                    v2 = b.ReadByte(); pos += sizeof(int);
                    v3 = b.ReadByte(); pos += sizeof(int);
                    v4 = b.ReadByte(); pos += sizeof(int);
                    address2 = v4.ToString("X2") + v3.ToString("X2") + v2.ToString("X2") + v1.ToString("X2") + "\r\n";

                    int value1 = int.Parse(address1, System.Globalization.NumberStyles.HexNumber); // "address1" stored as int. I think this should be the number of bytes that I need to read into the file
                    int value2 = int.Parse(address2, System.Globalization.NumberStyles.HexNumber);
                    using (BinaryReader b2 = new BinaryReader(File.Open("C:\\Users\\Alan\\Desktop\\charo\\data\\PackData\\_out_EN.pck", FileMode.Open))) // open the file with the actual data
                    {
                        b2.ReadBytes(value1); //read up to the starting position, and ingnore the data so far
                        String outputName = "C:\\Users\\Alan\\Desktop\\charo\\data\\PackData\\" + filenumber + ".txt";
                        BinaryWriter w = new BinaryWriter(File.Create(outputName)); //make a new file to copy the data into
                        for (int i = value1; i < value2; i++) //read the data stored between 2 addresses, and write it into the new file
                        {
                            int buffer = b2.ReadByte();
                            w.Write(buffer);
                        }
                        w.Close();
                    }
                    filenumber++; //increase the filename for the next file to be written
                }

            }

        }