The custom exporter will allow you to specify the template format that each value will be exported as.
This is specified using the * symbol where you'd expect the value to be exported. Other values will be exported as you write them. Some examples of Custom Templates for value AAAAAA to be exported are listed below.
Expected Result to be exported | Column Template Value |
AAAAAA | ****** |
AAAAA | ***** |
00AAAA | 00**** |
AAAA | **** |
AA-AA | **-** |
AAAAAA | *************************** |
Find the custom exporter under Settings > Integrations > Payroll Integrations > + New Payroll Integration > Create your own exporter.
Then, to customise how each column is formatted, click the settings/cog icon on that column:

