It is better not to upload word files. If needed you can post text and pictures directly in the post.
You always can first load the curtain wall door before trying to place it ins the curtain wall
Depending on how the curtain wall is set up it might be that the panels are locked. You can unpin them before replacing them with another panel (e.g.door)

After that you can select the panel and replace it by a door (based on curtain panel template)

Louis

Please mention Revit version, especially when uploading Revit files.