> For the complete documentation index, see [llms.txt](https://docs.perigee.software/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.perigee.software/examples-and-demos/name-split.md).

# Name Split

In this simple example, We show how to load in a source file, split the name column into it's first and surnames, then re-save the file. 

{% hint style="success" %}
This uses the [Transformer](/transform-sdk/quick-start-guide.md) to load data which means it goes through the data identification, cleaning, and import process it uses. To read more about it, check out the [Transforms ](/transforms/what-is-transforms.md)section!

[F(x) Expressions](/core-modules/utility-classes/f-x-expressions.md) are powerful "formulas" you can apply to your data. Check them out to see what else you can use!
{% endhint %}

```csharp
//Read file, add first and last name
var tblname = Transformer.TableFromFile(@"InputFile.csv");
tblname.Columns.Add("FirstName", typeof(string));
tblname.Columns.Add("LastName", typeof(string));

//Run an Fx expression over both new columns, splitting up the FullName into it's first and surnames
tblname.FxTable(new Dictionary<string, string>() {
    {"FirstName", "name([FullName], 'first')" },
    { "LastName", "name([FullName], 'surname')" }});

//Resave the CSV!
File.WriteAllText(@"Outfile.csv", tblname.ToCSV());
```


---

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