Where are Data types stored

I created a lbf form in excel and want to upload it to layout_options but first I need to add the data types. Where are the datatypes stored with their corresponding numbers?

I found it interface/super/edit_layout.php

Rod added new feature to handle csv from Backup export/imports that’s really nice however, he didn’t want to bring to patch 2.
Check master for PR to get an idea of how he did it.

Thanks very much, I will check that out.

pretty sure @sjpadgett is referring to this PR.