Comma Separated Values is a tabular to store data in plain text. There is no single CSV format, but in general there are 4 principles:

  • are plain text files (basically, this means numeric, graphical, or other values are expressed using printable characters rather than various-sized groups of bits),
  • consists of records (typically one per line),
  • with the records divided into fields that are separated by delimiters (typically a single reserved character such as comma or TAB, or sometimes any sequence of spaces and tabs),
  • where every record includes exactly the same sequence of fields (this is very occasionally violated).

Source: wikipedia

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