Thanks for the quick reply. I'm sorry. My english isn't that good enough to know for sure that's why I am asking.Sorry for that.
Offcourse I will include the lgpl and say that phpexcel is under this lisence. In simple words. I copied the phpexcel folder, PHPExcel.php, 03formulas.php into my apllication dir. Edited 03formulas.php. Added a comment in 03formulas.php that says that I
edited this file and this file only including the timestamp.
In my application footer I stated that my software is under GPLv3 lisence but it uses PHPExcel which is under the LGPL Lisence.
My question is. Should I release my whole code with LGPL because the file 03formulas.php is included in one of my files? Or can I stay with GPLv3 for my files and my files only as I say above?
Sorry for all the trouble. I just want to be sure before I release.