! Allowed
! Default
! Direction
! Excel
|- valign="top"
| Indicates if the first line of the parsed or serialized CSV data is a table header.
| {{Code|yes}}, {{Code|no}}
| ''parse'', ''serialize''
| {{Code|no}}
|
| {{Code|direct}}, {{Code|attributes}}, {{Code|xquery}}
| {{Code|direct}}
| ''parse'', ''serialize''
|
|- valign="top"
| {{Code|yes}}, {{Code|no}}
| {{Code|yes}}
| ''parse'', ''serialize''
| {{Code|no}}
|- valign="top"
| {{Code|yes}}, {{Code|no}}
| {{Code|yes}}
| ''parse'', ''serialize''
| {{Code|yes}}
|- valign="top"
| {{Code|yes}}, {{Code|no}}
| {{Code|no}}
| ''parse'', ''serialize''
| {{Code|no}}
|- valign="top"
| ''string''
| {{Code|no}}
| ''serialize''
| <code><nowiki>[^-+=@	 ].*|[-+]\d?(\.\d+)?</nowiki></code>
|}