Imports, exports, and fields · 6 min read

Prepare a CSV for TellTell

Shape a safe one-row-per-person roster and stay within TellTell's preview limits.

Give each person one row

  1. Start with a CSV

    Export or save the roster as a comma-separated values file. Only account Admins can import people.

  2. Use one header row

    Name columns clearly. Include Name or Full Name, at least one email column, and any group or custom-field columns you need.

  3. Use one row per person

    Put the person's additional addresses, groups, and fields on the same row. Do not split one person across overlapping rows.

  4. Normalize obvious differences

    Remove accidental spaces, check email spelling, and use consistent group and select-option names before uploading.

Full size
Crisp TellTell People Imports page showing the CSV upload area, basic file instructions, Examples tab, Custom fields tab, and Import history.

The Imports workspace keeps preparation guidance, upload, preview, and prior results in one place.

  1. 1Imports tab
  2. 2Preparation instructions
  3. 3CSV upload
  4. 4Import history

Stay within the preview limits

  • File size: 5 MiB or less.
  • Rows: no more than 10,000 data rows.
  • Columns: no more than 256.
  • Total cells: no more than 100,000.
  • Single field value: no more than 32 KiB.

Know what an import will not remove

An import adds or updates the values supplied in valid rows. It does not remove an existing email or group merely because that value is absent from the CSV, and a blank mapped custom-field cell preserves the current value.