Clean an imported CSV

Take a messy export from another app and fix its usual problems in order, with Remove duplicates, Split text, TRIM, VALUE and DATEVALUE.

Confident · 12 min · 12 steps

In this lesson

  • Clean in this order: remove duplicates, split columns, then fix spaces, numbers and dates in helper columns.
  • =TRIM(B2) for spaces, =VALUE(F2) for numbers stored as text, =DATEVALUE(E2) for dates stored as text.

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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

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Skill
Data cleaning
Stage
Confident

Where it sits in Data cleaning 10 lessons

The steps

12 steps: 3 explanations, 8 Do this, 1 question, 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