Quickly add multiple contacts to your Sender account by uploading CSV or Excel files.

Supported File Types

• CSV (.csv)
• Excel (.xlsx)
• TXT (.txt)

Maximum file size: 64MB

How to Import

• Go to your subscribers section
• Click on “Import from a file”
• Drag and drop your file or click “Import file”
• Wait for the upload to complete
• Your contacts will be added to your account

Proper File Structure

Your import file must include:

• Headers in the first row – Email address, First name, Last name
• One subscriber per row – Each contact on a separate line
• Data in separate columns – Each field in its own column

Example Structure

Using Templates

Not sure how to format your file? Download our ready-made templates:

• Download Excel template – For .xlsx files
• Download CSV template – For .csv files

Simply fill in your contact information following the template format.

Best Practices

• Clean your data – Remove empty rows and duplicate entries before importing
• Check email formats – Ensure all email addresses are valid
• Use standard headers – Stick to “Email address”, “First name”, “Last name”
• Add custom fields – Include additional columns for phone numbers or other data
• Save in the correct format – Make sure your file is saved as .csv or .xlsx

File Size Limitations

If your file exceeds 64MB:

• Split your contacts into multiple smaller files
• Remove unnecessary columns
• Import in batches

That’s it!

If you got stuck on a specific task or can’t find a way to execute a particular job, contact our support team via LiveChat or [email protected] – we’re here to help 24/7.