Keep it in version control: LaTeX resume templates and Git
If you're able or interested in learning, I highly recommend using the TeX template. This a free piece of software. If you're on a PC, look at MikTeX. If you're on a Mac, look at MacTeX. If you're on Linux, figure it out.
I also recommend learning to use Git. Create a free GitHub account and create a private repository. Commit changes to the Git repository. This will allow you to diff between versions, maintain a history, and never lose the document. I also recommend using TeX to personalize your résumé for every job by commenting out irrelevant bullets. If you're really into it, look into using branches for specific jobs, and then merge that back into master. You can also tell other people that your résumé is in Git which is pretty damn cool. Bonus: look into hooking GitHub commits to AWS CI/CD pipelines and publishing it automatically to an S3 bucket and link to your website. *Magic* YMMV.
One more thing
The TeX version has a cool feature in the underlined, bolded job details. Look at the template PDF for letters that have descenders such as g, p, q, y. Pretty cool, eh? Totally unnecessary but pretty sweet.
Principal Engineer, Paget & Quigley
The rule breaks for g, p, q, y — it doesn't run through them