I'm not clear on your question podlod. There are three tools:
- Notepad - Text file editor - (comes with Windows)
- WordPad - Basic word processor - (comes with Windows)
- Microsoft Word - Full Word Processor - (separate MS office product)
What exactly are you trying to do in which ?
Notepad is for editing text files without any formatting. Anything you save in that should be opened easily in the other two (Wordpad and Word).
If you save wordpad or word and try to open in notepad it will seem "encyrpted" because they save files with formatting included and do not save files in a "text" file format, i.e. not human-readable (e.g. in notepad - which will show you human-readable files).
Pretty much anything you save in Wordpad I would expect to be able to open in Microsoft Word. Files you open in Word may not be easily opened in WordPad without loss of formatting/issues.
So there is a hierarchy in effect, the most basic, human readable (in notepad) text files up to the most powerful word processor with its own file format (word) that you can't read fully in the "lesser" tools.
notepad -> Wordpad -> Word
you can go from left to right but not back.
Hope that helps.