2003-09-13  Nick Lamb <njl195@zepler.org.uk>

	* ms-excel-read.c (excel_sheet_new) : typo fix
	(excel_read_FORMAT) : Early BIFF uses smaller datatypes
	(excel_read_FONT) : Implement for early BIFF
	(excel_get_xf) : More early BIFF hacks
	(excel_read_XF_OLD) : New function, read OLD XF structures
	(excel_workbook_add_XF) : Obsoleted, removed
	(excel_formula_shared) : Early BIFF uses smaller datatypes
	(excel_workbook_reset_style) : New function, needed for XLW files
	(excel_read_EXTERNNAME) : typo fix, Early BIFF fixes
	(excel_read_NAME) : Early BIFF uses smaller datatypes
	(excel_read_sheet) : Style is per-sheet in XLW files, what default?
	 Use excel_read_XF_OLD instead of excel_workbook_add_XF
	(excel_read_BOF) : Stop using excel_workbook_add_XF,
	 report XL4 workbooks to stderr just like all other file types

	* ms-formula-read.c (excel_parse_formula) :
	 Handle PTG_SHEET and PTG_SHEET_END, at least for known examples
	 Also early BIFF as usual has smaller datatypes