Import and export data
Import customers and products from CSV, or export your full administration.
4 minUpdated 8 June 2026
Export
- Go to Settings → Import/Export.
- Choose the data type and period.
- Download as Excel (.xlsx) or CSV.
Available exports: customers, invoices, quotes, products, expenses, time entries.
Import
- Go to Settings → Import/Export → Import.
- Download the template file for the data type you want to import.
- Fill in the template (e.g. from your old invoicing tool).
- Upload the file and review the preview.
- Confirm the import.
Tips for a clean import
- Remove duplicate customers before importing.
- Use UTF-8 encoding for CSV with special characters.
- Import customers first, then products, then invoices.
Switching from another tool
Switching from Moneybird, e-Boekhouden, or Excel? Export your customer list and outstanding invoices there, and import them into Declair. Contact [email protected] if you need help with a large migration.
Still have questions? Our team is happy to help.