How do you convert text file into arff file?

There's probably a better way but one way would be to print the text file as a pdf and then open the pdf with an image editing program.

- When saving a notepad document for the first time, in the "Save as type" box, select "All files". - When naming the file, you MUST end the filename with ".bat" without the quotes. Hope this helps.

Change the extension from .xml to .txtIt depends on what you mean by 'convert'. As the previous entry above suggests, this will only change what program looks at the text; the content will still be...

The process is called optical character recognition (OCR). You can find various tools that are able to do that, even freeware. Some of them are provided together with scanners. A number of services...

You can change the file extension from .txt to .jar but .jar is a java format and is not normally used to wrap text.