Below is a snapshot of a young woman’s resume and cover letter, before and after my edits. She got an interview - and landed the job - and even negotiated a higher wage than was originally offered to her.
Note: Click on any of the editing example images to magnify and increase clarity.
I edit with Microsoft Word's "track changes" and use the balloon style edit. The balloon version shows all deletions and formatting changes to the document on the right side of the page. Click on the image below to take a closer look.
I like the balloon style because it's cleaner and each change is documented clearly in a separate panel off to the side, but by all means if you prefer the strikethrough, don't hesitate to request it!