* is a '\t',' ' or '\n' separated list of cells. Each individual cell is
* like "[name]:[value]" where [name] is the name of an already registred
* cell, and [value] conforms to the data type under which this cell was
* is a '\t',' ' or '\n' separated list of cells. Each individual cell is
* like "[name]:[value]" where [name] is the name of an already registred
* cell, and [value] conforms to the data type under which this cell was