QUICK ANSWERStart with the tool that matches your immediate input.
Open DOCX Viewer first when its stated purpose matches the result you need now. Use DOCX Word Counter only when it solves a separate next task.
This guide is for writers, office teams, students, and data workers. Start with DOCX Viewer when your immediate task is to inspect your input with the DOCX Viewer and review a clear, useful report. Move to DOCX Word Counter only when you also need to inspect your input with the DOCX Word Counter and review a clear, useful report.
The goal is not to run two tools automatically. It is to finish the first narrow task, inspect its result, and then decide whether DOCX Word Counter solves a genuinely different next step.
Both tools sit in Documents & Files, but they handle different inputs or outcomes. Keeping those roles separate reduces repeated work and makes verification easier.