This software helps create another version, even multiple versions of content, from the same content. This will avoid duplicate penalty usually imposed by search engines.
Spinner is used for spinning text content into many variations for further usage. When content is submitted to another site it is open to duplicate check. Thus one cannot publish exactly the same content, even when owned by you, to different places. Search engines typically will penalize the second site that has the same content. One way to avoid that would be if the same content can be re-arranged to look sufficiently different from the original then the duplicate penalty can be avoided. This is known as spinning of content. The original content is created and pasted onto the spinner text field. You could create they content inside the software too. The software uses special formatting for spinning content as is usually used by such spinners.
The formatting used is to have the alternative words (word1, word2, word 3 etc.) that will be used in making alternate versions are separated by a special marker the vertical line. The same marker is use to mark variations of content that would be rotated through the article to create a new version. More variations of not only separate words, but for phrases, sentences, and even paragraphs as well will ensure you get widely different versions of the same content. The interface lets you specify how many variations are to be created. How well the spinners work in creating a completely understandable content is doubtful. You may need to do quite a bit of editing to get the new versions of the articles to be useful to people. if you are looking to raise your rankings in search engines and quality of the content does not matter all that much then these may be useful to you.