Atop CHM to TXT Converter - Version 1.0 Atop Free CHM to TXT Converter is handy and easy to use freeware to convert CHM to TXT in batch mode. With only one click, you can convert ebooks, technical documentation and manuals you have in CHM format to plain text file. So you can easily edit, re-use, re-organize, present, and share your file. Most of all, it is free!