TEXTJOIN practice exercises

Joins text values with a separator, and can skip the empty ones. Below are 1 interactive exercise that put it to work on realistic business data — you write the formula, and get told exactly what went wrong when it does not work.

Syntax

TEXTJOIN(delimiter, ignore_empty, text1, ...)

Available from Excel 2019.

Practise TEXTJOIN

Ordered from most approachable to hardest.

When TEXTJOIN is the right tool

Joins text values with a separator, and can skip the empty ones. It belongs to the text functions family, and it shows up constantly in real work — which is why it is worth being genuinely fluent rather than merely familiar.

Before this one, it helps to be comfortable with CONCAT. The exercises below assume that ground is covered.

Reading about a function is not the same as being able to write it. The exercises on this page exist because the gap between recognising TEXTJOIN and producing it from memory, correctly, on data you have not seen before, only closes by doing it.

Questions about TEXTJOIN

How do I practise TEXTJOIN without Excel installed?

Every exercise on this page runs in your browser. You type the TEXTJOIN formula into a real spreadsheet grid and get told immediately whether it works — no download, no account.

What does TEXTJOIN do?

Joins text values with a separator, and can skip the empty ones. The syntax is TEXTJOIN(delimiter, ignore_empty, text1, ...). The exercises below put it to work on realistic business data rather than abstract examples.

How long does it take to learn TEXTJOIN?

Most people can write a working TEXTJOIN formula within twenty minutes of practice. Getting it right under pressure — with edge cases, unsorted data and ranges that must survive being filled down — is what the harder exercises here are for.