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- 1 History
- 2 Specification
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Comma-separated values

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From Wikipedia, the free encyclopedia

Text format

Comma-separated values

.csv
text/csv[1]
public.comma-separated-values-text[2]
public.delimited-values-text[2]
multi-platform, serial data streams
database information organized as field separated lists
RFC 4180

Comma-separated values (CSV) is a plain text data format for storing tabular data where the fields (values) of a record are separated by a comma as the delimiter and each record is a line (i.e. newline is the delimiter). CSV is commonly used in software that generally deals with tabular data such as a database or a spreadsheet.[3] Benefits cited for using CSV include simplicity of use and human readability.[4] CSV is a form of delimiter-separated values. A CSV file is a file that contains CSV-formatted data.

CSV is not limited to a particular character encoding[1] but should be and is commonly used with UTF-8, particularly because it does not provide a way to indicate the character encoding.

History

[edit]

The CSV format predates personal computers by more than a decade. The IBM Fortran (level H extended) compiler under OS/360 supported list-directed ("free-form") input/output, with commas between values, in 1972.[5] List-directed input/output was defined in FORTRAN 77, approved in 1978. List-directed input used commas or spaces for delimiters, so unquoted character strings could not contain commas or spaces.[6]

The term "comma-separated value" and the "CSV" abbreviation were in use by 1983.[7] The manual for the Osborne Executive computer, which bundled the SuperCalc spreadsheet, documents the CSV quoting convention 
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