Learning how to use productivity software is crucial to your success with a computer. But mastering software like Word and Excel can take years of practice.

You can pay to take courses that teach these programs. Unfortunately, most of these are expensive. But you can get loads of free training online.

The Mouse Training Company offers a long list of programs to train in. It has all of its training manuals available to download as PDFs.

Keep in mind that the digital versions of the manuals are free. If you want a printed and bound copy, you'll have to pay for it.

Note: The instructions request that you link to the site from your company Web page. This applies to businesses only. There are no requirements for individual users. Simply scroll down the Web page to find the manuals.

Cost: Free

Link: www.mousetraining.co.uk

System: Windows XP, Vista, 7, Mac OS X