Take a look at the code... make a copy and make the parameters bigger.

It shouldn't be hard.
--
Scott Klement

Thanks Scott -- You are right. I got something working to do this (below).

Thanks Buck -- Good advice.

Thanks Mihael - googled libxlsxwriter looks interesting but i'm already
down the road i'm down :-)
http://blog.rpgnextgen.com/blog/2018/03/21/libxlsxwriter-creating-spreadsheets-natively

John

Fit this into my calling program - 'seems' to work for any value except
the absolute max value of int(10) - 2147483647, works for one less -
2147483646.
ie
this -- Row / Col......: 2147483646 100000
returns this -- EQXE2147483647
(i know, 100,000 columns... column "EQXE" . . . never gonna happen :-)

//===============================================================
dcl-proc #cellName ;
dcl-pi *n varchar( 20) ;
peRow int(10) value ;
peCol int(10) value ;
end-pi ;
// ss_cellName(): Convert POI y,x coordinates into a cell name
// (example: 0,0 becomes A1, 110,24 becomes Y111)
// peRow = row number (A=0, B=1, etc)
// peCol = column number
// Returns the alphanumeric cellname
// 'Should' work for both hssf & xssf
//===============================================================
dcl-ds dsAlphabet qualified static ;
whole char( 26) inz('ABCDEFGHIJKLMNOPQRSTUVWXYZ') ;
letter char( 1) dim(26) overlay(whole) ;
end-ds;
dcl-s wwRem int(10) ;
dcl-s wwCN varchar( 20) ;

peRow += 1 ;
peCol += 1 ;
wwCN = '' ;

dou peCol = 0;
wwRem = %rem(peCol: 26);
peCol = %div(peCol: 26);
if (wwRem = 0);
wwRem = 26;
peCol -= 1;
endif;
wwCN = dsAlphabet.letter(wwRem) + wwCN;
enddo;
wwCN = wwCN + %char(peRow);

return wwCN ;
end-proc ;
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