http://search.cpan.org/tools/Spreadsheet-WriteExcel-2.40 -> http://search.cpan.org/grep?cpanid=JMCNAMARA&release=Spreadsheet-WriteExcel-2.40&string=bold&i=1&n=1&C=0#examples/colors.pl 
2499:You can specify the font of a section of the text by prefixing it
+ with the control sequence C<&"font,style"> where C<fontname> is a fo
+nt name such as "Courier New" or "Times New Roman" and C<style> is on
+e of the standard Windows font descriptions: "Regular", "Italic", "Bo
+ld" or "Bold Italic":
2502:    $worksheet2->set_header('&C&"Courier New,Bold Italic"Hello');
2760:               Bold              bold            set_bold()

[download]

So the docs say its a set_header feature ... I'd try it with cells to see if it works

In reply to Re^3: Multiple formats in Excel cell (Spreadsheet::WriteExcel) by Anonymous Monk
in thread Multiple formats in Excel cell (Spreadsheet::WriteExcel) by Michaels

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