Each refdb requires the following two files:

  *  sxml/_sheets.sxml:

<verbatim>
(

; for each sheet, add the following, replace sheet_name with the sheet's name


    (@ "65536")
      "256"))
     "sheet_name"))

)
</verbatim>

  *  smxl/_workbook.sxml:

<verbatim>
(*TOP* (*PI* xml
</verbatim>

In addition, each tab requires the following file:

  *  sxml/_sheets.sxml:

<verbatim>
)
</verbatim>