At my work, I have an employee that struggles with several aspects of the office work parts of the job. She’s got almost no basic computer literacy, and only recently was able to create new folders consistently. She also can’t really use Excel at all.
She wants to learn, and I spent my whole youth on computers, but I can’t spare the hours to teach her everything from the ground up at work. I’ve done a little YouTube searching to check for basic computing tutorials, but I haven’t found anything at a basic enough level yet to be useful to her. I’m sure they exist, but are just eluding me. I think for her, something she can watch and maybe follow along with might be the best option.
Check with your local library. Most have free beginner computer classes.