First and foremost, you will need to select a desired document file and upload it to A1 Office Docx Editor Online tool. Once the file is added, you can perform all listed tasks in the document (editing, image and table addition, remove text etc.). When editing is completed, you can download the resultant file in .docx format. For example, you can upload a document in RTF format, edit it, and download it in a Docx format.