A range of formats are available for each type of field. The plugin will try work out what type each field is. If it doesn’t, you can set the type of field (integer, text, post_id etc) yourself in the ‘Fields & Nice Names settings.
As well as the formats, it is also possible to specify a type of link for each field. There are some predefined link types. For urls added by third party plugins an addon may be needed. You can also define your own rule for a link type via filter or pluggable function. See example site specific plugin.
For example: Date Time fields and Unix time-stamp fields (and even an ‘ambiguous date in case you have inconsistent data) can be formatted as:
- Date and time
- Ago (human time difference)
- Birth month
The actual format of the date, time and datetime options can also be customised. The options are the usual wordpress options AND the custom options from your general settings screen.
user_email field will be formatted with the ‘mailto’ linktype and then each site can tailor this with their own css. Perhaps use wordpress dashicons to show a email icon?
You should ensure that your data adheres to the field type specified. Any invalid data will generally be shown unformatted / raw.