Types of Computer File

A PowerPoint
This is a PowerPoint file, or PPT.
You can put text, pictures or videos in it.
People use PowerPoint to make presentations.
A Spreadsheet
This is a spreadsheet.
People use spreadsheets to organize data.
A Word Document
This is a word document.
People can write reports in a word document.
An Audio File
This is an audio file.
When you record audio, you save it as an audio file.
A Video File
This is a video file.
When you record a video, you save it as a video file.

Exercises beyond the original
People use Excel to create spreadsheets.
This file isn't a Word document, so we couldn't open it.
He is recording an audio file.
This video file is very large, and it takes him two hours to download.

Listen and Repeat
You can save this audio file as an MP3.