Unless otherwise noted, I have taken the files from Project Gutenberg. Each file contains a header of legal and other information required by Project Gutenberg.
The texts are in plain ASCII format. You can save the files to your computer, and read them with just about any word-processing program.
I know the files are not perfect--there are, at least, spelling/typing mistakes in them. There may even be missing paragraphs and chapters. But for the most part, they should be accurate.