Will the formatted file still be editable in Word and Google Docs?

The tool writes a normal .docx (Office Open XML) file, so it behaves like any other Word document you'd create yourself. When you reopen it, the headings are genuine Word heading styles, the lists are real bullet and numbered lists, and the spacing, alignment, indentation, and margins are all live settings you can adjust further — nothing is baked into a picture.

Because the applied formatting uses Word's built-in style system rather than one-off manual tweaks, it actually makes further editing easier. You can update a heading style once and have it cascade, regenerate a table of contents from the real headings, or drop the document into your organization's template. In Google Docs, upload the .docx and open it with Google Docs; the headings and lists carry over as editable Docs elements.

A couple of practical notes: fonts that aren't installed on the opening device may be substituted (choosing common fonts avoids this), and Google Docs occasionally renders complex margins or spacing slightly differently than Word — but in all three apps the document remains a normal, editable file you can continue working in, not a locked export.