# FileExtension - script function

The FileExtension function returns a string containing the extension of the table file currently being read.

Syntax:

FileExtension()

Examples and results:

Examples and results

| Example | Result |
| --- | --- |
| `LOAD  *, FileExtension(<br>) as X from`<br>`C:\UserFiles\abc.txt` | Will return<br>'txt' in field X in each record read. |