Microsoft Outlook is notoriously strict about CSV headers. Even a single lowercase letter where an uppercase is expected can cause an import to fail. Our CSV to Outlook converter pre-maps your data to the official Outlook "Windows CSV" schema, ensuring a professional and error-free import.
What is CSV to Outlook Conversion?
This tool re-layers your contact data onto the standardized header structure used by Microsoft. It ensures fields like "Job Title", "Company", and "Business Phone" are recognized by Outlook's internal database upon import.
Why Use Our Outlook Mapper?
- Eliminates the "Field Mapping" headache in the Outlook wizard
- Guaranteed compatibility with Outlook 365, 2021, 2019, and 2016
- Handles professional fields like Department, Manager, and Assistant
- Properly encodes data for Windows environments to avoid character errors
- Privately process your business contacts locally in the browser
- Free and fast with support for large corporate lists
How to Import CSV to Outlook
Load CSV File
Paste your data or upload your contact spreadsheet.
Align Headers
Match your spreadsheet columns to the Outlook fields provided.
Generate File
Download the Outlook-compliant CSV file.
Run Outlook Wizard
In Outlook, go to File > Open & Export > Import/Export.
Key Features
Outlook Schema Mapping
Uses the exact column names expected by the Microsoft import engine.
Business Field Support
Specialized mapping for corporate-specific contact information.
Data Sanitization
Removes hidden characters that often break Outlook imports.
Instant Preview
Check your data mapping before the final download.
Local Only
Your business intelligence never touches our server.
Best Practices
- Use "Windows CSV" encoding if you planning to open the file in Excel first
- Split full names into First and Last names for better sorting in Outlook
- Check for semi-colons in your source data which can disrupt CSV structure
- Backup your existing Outlook contacts before running a major import
- Use the "Map Custom Fields" button in Outlook if headers don't auto-match
Common Use Cases
New Employee Setup
Importing a project team or department contact list into Outlook.
CRM Migration
Moving professional contacts from Salesforce or HubSpot into your inbox.
Event Networking
Importing scan-to-CSV leads from a conference or trade show.
Legacy DB Export
Moving contacts from an old SQL or Access database into Outlook.
Frequently Asked Questions
Does it work with Outlook on Web?
Yes, but the desktop version offers more robust mapping options.
Will it merge duplicates?
Outlook will ask you how to handle duplicates during the import process.
How many contacts can I import?
Outlook handles thousands of contacts, though very large lists (>10,000) should be split.
Is my data safe?
Yes, our tool is 100% client-side. We do not store or see your data.
Ready to Get Started?
100% browser-based. Your data never leaves your device.
Open CSV to Outlook Contacts