Extraer Texto De Un Archivo Binario - Ejercicio De Programacion C# Sharp

// Import the necessary namespaces for file handling and basic input/output operations
using System;  
using System.IO;  

// Declare the main Program class
class Program
{
    // Main method where the program starts
    static void Main()
    {
        // Specify the input binary file and output text file paths
        string inputFilePath = "input.bin";  // Replace with the path to your binary file
        string outputFilePath = "output.txt";  // Replace with the desired output file path

        // Try to process the binary file and extract printable characters
        try
        {
            // Open the input binary file using a BinaryReader
            using (BinaryReader reader = new BinaryReader(File.Open(inputFilePath, FileMode.Open)))
            {
                // Create a StreamWriter to write the extracted characters to the output file
                using (StreamWriter writer = new StreamWriter(outputFilePath))
                {
                    // Read the entire file byte by byte
                    while (reader.BaseStream.Position < reader.BaseStream.Length)
                    {
                        // Read the next byte from the file
                        byte b = reader.ReadByte();

                        // Check if the byte represents an ASCII character between 32 and 127, or is 10 (newline) or 13 (carriage return)
                        if ((b >= 32 && b <= 127) || b == 10 || b == 13)
                        {
                            // Write the character to the output file
                            writer.Write((char)b);
                        }
                    }
                }
            }

            // Notify the user that the extraction was successful
            Console.WriteLine($"Extracted text has been saved to '{outputFilePath}'");
        }
        catch (Exception ex)  // Catch any errors that may occur during file reading or writing
        {
            // Print the error message to the console
            Console.WriteLine($"Error processing the file: {ex.Message}");
        }
    }
}

 Salida

Input:

Let's say input.bin contains the following sequence of bytes:
0x48 0x65 0x6C 0x6C 0x6F 0x20 0x57 0x6F 0x72 0x6C 0x64 0x00 0x01 0x02

The hexadecimal values represent the following characters:
'H' 'e' 'l' 'l' 'o' ' ' 'W' 'o' 'r' 'l' 'd' (non-printable bytes 0x00, 0x01, 0x02)

Output:

The program will extract the printable characters and save them in output.txt:
Hello World