Layout Template for files exported from the Thunderbird Address Book in Tav Delimited format. To export your Thunderbird Contacts for use in Differencia:
Open the Thunderbird Address Book by Choosing Window > Address Book
Select which Address Book collection you want to export in the source lift at the left of the Thunderbird Address Book window
Choose Tools > Export...
Change the Format from LDIF to "Tab Delimited"
Choose where you want to save the exported file, ensuring the file has the extension ".tsv" and click Save
Open the file in Differencia by Choosing File > Open in Differencia