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What are PDFs, PPTs, DOCs...?

There are lots of different types of documents online.

The World Wide Web isn't just about text and pictures. There are lots of other types of information which you can look at online or even download. Here are some of the most popular ones:

DOC
Word documents.

These might include school reports, or written information about a topic.

PDF
Portable Document Format pages.

PDF files are usually written documents which you can download, read and print easily.

XLS
Excel spreadsheets.

These are used by people who work with numbers and have to do lots of different calculations.

EXE
Executable files.

These might contain a game or a computer program. Be especially careful when downloading these!

PPT
Powerpoint presentations.

These might have pictures / text / sounds in them, and they are used when showing information to an audience.

MP3
MP3 Music files.

If you have an MP3 player, it can play these back to you! Your computer can probably play them too.

ZIP
ZIP files.

Zip files might contain lots of different documents, all zipped up into one file!

MP4
MP4 Video files.

You can play them back on your computer, or watch them on your MP3/4 player (if you have one).

Be very careful when you are downloading files. Sometimes documents and files might be infected with computer viruses which can damage your computer. If you are not sure about something, don't download it, or ask someone before you do!


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