i'm also having the same problem, when i download the file generated by PHPexcel and open it with Microsoft Excel 2007 in windows 7 it gives me the fallowing error, "Excel found unreadable content in .xlsx.Do you want to recover the contents of this workbook?...", i click "yes" and another window is prompt, "Repairs to .xlsx ", "Excel was able to open the file by repairing or removing the unreadable content.", "Repaired Records:Drawing from /xl/drawings/drawings1.xml part(drawing shape)".
and the pie chart appears but without the data series Labels.
I also tried the same with PHPexcel example "33chartcreate-pie.php" and i'm having the same issue.
In Fedora19 using boxes as a virtual machine with Windows 7 and using Microsoft Office 2007
PHP Version:5.3.8
Thanks in advance and happy holidays.
and the pie chart appears but without the data series Labels.
I also tried the same with PHPexcel example "33chartcreate-pie.php" and i'm having the same issue.
In Fedora19 using boxes as a virtual machine with Windows 7 and using Microsoft Office 2007
PHP Version:5.3.8
Thanks in advance and happy holidays.