Import templates show the fields that are expected for each model you are importing. Please familiarize yourself with the concepts of models and attributes first.
Below are the steps to access the import template:
Go to Master Data
Select core data model you are interested in
Click ⋮ to see the grid options
Download Template
Please see below for what the template will look like:
Using this template, you can see all the fields Toolio is expecting for the Sale model, along with the custom attributes, like col_channel.