RFC 4180, "Common Format and MIME Type for Comma-Separated Values (CSV) Files", October 2005Source of RFC: IETF - NON WORKING GROUP
Area Assignment: app
Errata ID: 5464
Publication Format(s) : TEXT
Reported By: Alperen Belgic
Date Reported: 2018-08-15
Rejected by: Benjamin Kaduk
Date Rejected: 2018-08-16
Section 2 says:
5. Each field may or may not be enclosed in double quotes (however some programs, such as Microsoft Excel, do not use double quotes at all).
It should say:
5. Each field may or may not be enclosed in double quotes.
For csv files, Microsoft Excel 2010 saves the value of a field enclosed in double quotes if a cell contains a comma in its value.
Errata are only considered that would have been errors at the time the document was published.
The document refers to the version(s) of Excel that were available at its time of publication, not versions released since then.