Text in a cell may be surrounded by quotation character (<nowiki>"</nowiki>), to note the start and end of a cell (a particular column and row location) in a table. Quotation characters in a cell value in turn can be denoted by doubling the quotation character (<nowiki>""</nowiki>). This is primarily used to signify that a particular cell contains data that may be confusing to a computer that's trying to read the file. A common example of this is when a cell contains a comma as part of it's data. Without the quotation marks, it's unclear if the comma denotes a separation between cells: