Conversion programs translate documents from one format to another ... the codes have to be changed manually one at a time. Word processing programs have run from the ridiculous to the sublime ...
Most people are familiar with word processing packages such as Microsoft Word or Writer (part of the Open Office suite). The use of cut, copy, and paste is not necessarily limited to text.
Nowadays, if you lose an unsaved Word document, there might still be a way to recover it. The process isn't guaranteed, and you'll likely have to try multiple methods before you find success ...