Latest svn version (4100) on Lazarus 1.4.0 32 bit, Windows 7 x64 (pro).
i tried saved as sfExcel8, sfOOXML and sfOpenDocument, and has no any changes.
program xlswritetest;
{$mode objfpc}{$H+}
uses
Classes, SysUtils, fpstypes, fpspreadsheet, laz_fpspreadsheet;
var
workb: TsWorkbook;
works: TsWorksheet;
begin
workb:=TsWorkbook.Create;
works:=workb.AddWorksheet('Test');
works.WriteRowHeight(1, 5);
works.WriteUTF8Text(0, 0, 'One');
works.WriteUTF8Text(1, 0, 'Two');
works.WriteUTF8Text(2, 0, 'Three');
workb.WriteToFile('c:\test.xls', sfExcel8);
workb.Free;
end.
Best regards
Paweł