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encoding_handling.md

🔤 Handling File Encodings Explicitly​

Specifying external and internal encodings avoids invalid byte sequences and ensures proper string conversion. Use :encoding option with File.open.

File.open('data.csv', 'r:ISO-8859-1:UTF-8') do |f|
  f.each_line do |line|
    puts line.encoding  # => UTF-8
  end
end