OpenCart PHP Fatal Error: Allowed memory size of

The Export/Import Tool is a very useful tool when you need to manage tons of products in OpenCart. However, you may see this message when you try to export your file:
PHP Fatal Error:  Allowed memory size of 67108864 bytes exhausted (tried to allocate 48 bytes)

Then you can set "memory_limit = 512M;" in your php.ini file.