ses: The data area

 
 5.3 The data area
 =================
 
 Begins with an 014 character, followed by sets of cell-definition macros
 for each row, followed by column-widths, column-printers,
 default-printer, and header-row.  Then there’s the global parameters
 (file-format ID, numrows, numcols) and the local variables (specifying
 SES mode for the buffer, etc.).
 
    When a SES file is loaded, first the numrows and numcols values are
 loaded, then the entire data area is ‘eval’ed, and finally the local
 variables are processed.
 
    You can edit the data area, but don’t insert or delete any newlines
 except in the local-variables part, since SES locates things by counting
 newlines.  Use ‘C-x C-e’ at the end of a line to install your edits into
 the spreadsheet data structures (this does not update the print area,
 use, e.g., ‘C-c C-l’ for that).
 
    The data area is maintained as an image of spreadsheet data
 structures that area stored in buffer-local variables.  If the data area
 gets messed up, you can try reconstructing the data area from the data
 structures:
 
 ‘C-c M-C-l’
      (‘ses-reconstruct-all’).