Change integer to floating numbers in a csv table with Notepad++

• Open the csv text file with Notepad++
• Go to Search/Replace or press Ctrl-H
• Click Wrap around
• Set Search Mode to Regular expression
• Search and replace two times:

  • Search for: ,([0-9]+)(,|\r)

  • Replace with: ,\1.0\2

• Check the result
• If it does not work for the last column, try \n or \r\n instead of \r