Hello Laurent, Looks good. It's just another workaround but as mentionend on IRC we need to refactor the calling code and then remove the unneccesary calls to AddColumn and AddRow for empty cells. We just can't do this in the 3-4 branch so this workaround should be good for now. I pushed it to the 3-4 branch with: <a href="http://cgit.freedesktop.org/libreoffice/calc/commit/?h=libreoffice-3-4&id=3031674a1bd4a3a2c4f5131ad847c61c9dcbcc55">http://cgit.freedesktop.org/libreoffice/calc/commit/?h=libreoffice-3-4&id=3031674a1bd4a3a2c4f5131ad847c61c9dcbcc55</a> and an adjusted patch to master with: <a href="http://cgit.freedesktop.org/libreoffice/core/commit/?id=5b9005677020c1111259bd0adc292a9b838c2995">http://cgit.freedesktop.org/libreoffice/core/commit/?id=5b9005677020c1111259bd0adc292a9b838c2995</a> Thanks for your great work. Go on like this! Regards, Markus