I know that, the file got wrong format, but when I save as an excel (without changing anything), It works well. But problem is; my users will upload files like that.

PHPExcel last version, 1.8.1, was released in 2015. The project is no longer maintained and should not be used anymore. All users should migrate to its direct ...

Lets cut the chase and see how can we do it : First of all extract the .zip folder of the library file which we have just downloaded and put it in the setup folder where we need to include. Now, ...