Increase Maximum file size beyond 12 MB for CSV Importer

How do I increase the Max file size beyond the 12 MB for the CSV importer. Is this set in the php.ini or some other place? Thanks.

Is it:
; Maximum allowed size for uploaded files.
upload_max_filesize = 12M

In php.ini

The maximum upload size is controlled by PHP settings in php.ini, and it's actually controlled by two settings. Both upload_max_filesize and post_max_size must be set to a large enough value.

great and thanks.