@Viscount See the below EM Client link from for info how to import contacts from Incredimail.
How do I import my contacts from Incredimail to eM Client - Initial setup - eM Client
Two options:
- Export the contacts from your email application, then import them into eM Client using Menu > File > Import. eM Client can support vcf or csv formats.
- If your contacts are already synced with an online provider like GMail, then adding the same account in eM Client will sync those contacts.