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Import contacts from CSV/Excel

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:

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 support@sender.net – we’re here to help 24/7.