excelPerl.pl -ane "$C->[2]->{FormulaLocal} .= '+99'" -f test.xls

##</code><code>##

perl excelPerl.pl -begin "use Text::CSV_XS; $csv = Text::CSV_XS->new( { binary => 1 } )" -ane "$csv->combine( map { $_->{FormulaLocal} } @C); print $csv->string, $/" -f test.xls

##</code><code>##

a,b,a+b
1,4,=A2+B2
2,5,=A3+B3
3,2,=A4+B4
4,1,=A5+B5
5,5,=A6+B6