  Spreadsheet tables are often labeled, and these labels effectively constitute
types for the data in the table. In such cases tables can be considered to be
built from typed data where the placement of values within the table is
controlled by the types used for rows and columns. We present a new approach to
the transformations of spreadsheet tables that is based on transformations of
row and column types. We illustrate the basic idea of type-based table
construction and transformation and lay out a series of research questions that
should be addressed in future work.
