Text files contain text that is in lines. There is no other structure.

Example 1 shows how to read a text file in pseudo-code.

Example 1
file ← OPENREAD("students.txt")
FOR n ← 0 TO LEN(file)-1
  line ← file.READLINE()
  OUTPUT line
ENDFOR
file.CLOSE()

Example 2 shows how to write to a text file in pseudo-code.

Example 2
file ← OPENWRITE("students.txt")
FOR n ← 0 TO 9
  name ← USERINPUT
  file.WRITELINE(name)
ENDFOR
file.CLOSE()

Comma-separated value (CSV) files provide a bit more structure. In each line, the fields are separated by commas. They are handled exactly the same way as regular text files.

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What are the disadvantages of using CSV files instead of regular text files?

They need more string processing and manipulation when reading and writing.

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