Standardize inconsistent entries ("NY" vs "New York")

Make every version of a value, like NY, N.Y. and New York, read the same with Find and replace or a mapping table, so totals and counts add up.

Confident · 11 min · 12 steps

In this lesson

  • COUNTIF, SUMIF, lookups and pivot tables treat NY, N.Y. and New York as different values.
  • Many versions: a mapping table with every version once next to its standard value, the standard values included.
  • #N/A from the lookup means a version the map doesn't have yet. Add it to the map.

Try a free lesson first

Remove duplicates

Delete repeated rows from a merged list, and choose which columns decide what counts as a duplicate.

Confident · 9 min · Free, with no sign-up

Do the free lesson on your computer.

Send yourself the link and open it on a laptop or desktop.

On your computer, go tolearnford.com/go/2R5R

This lesson is in the full Excel course

US$149 once

Tax included. New lessons are added as they're written.

Get the full course, US$149

30-day money-back guarantee if you've opened fewer than 10 paid lessons.

  • All 217 Excel lessons open today, and every new one as it's written.
  • The Roadmap, Skills and all eight paths.
  • A cheat sheet for every lesson you finish.

Already have the course? Sign in

Skill
Data cleaning
Stage
Confident

Where it sits in Data cleaning 10 lessons

And 1 more, up to Project: clean a messy customer list. See the whole skill

The steps

12 steps: 4 explanations, 6 Do this, 2 questions, then Your turn.

Try a free lesson first

Remove duplicates

Delete repeated rows from a merged list, and choose which columns decide what counts as a duplicate.

Confident · 9 min · Free, with no sign-up

Do the free lesson on your computer.

Send yourself the link and open it on a laptop or desktop.

On your computer, go tolearnford.com/go/2R5R