syntax -- generate loadspec for sheet [<sheetName>] from file [<xls fileName>]
The generated loader XML file is placed in <install-root>/custom/loader with a file name
of load-<sheet-name>.xml. The table drop and create JACL script is generated in
<install-root>/custom/loader/scripting with a file name of Loadscript-<sheetname>.
jacl. The input Excel file should be placed in <install-root>/custom/data.