The first row should be a header and contain the column names. The column names will be parsed and presented for grouping in the next step. You can see an example here.
Processing...
2. Add treatments
Here you will create the categories of treatments or/samples that you used in the experiment. Just the categories, don't worry about adding the time point info yet.
{{treatment}}
3. Explain the data
If you dont want particular samples to be analysed but don't want to delete them from the file you have the option to mark them as `UNUSED`