Sometimes, I like to go back into my old school files and read the terrible essays I wrote in high school. However, on occasion, I will accidentally hit a key while reading, and this changes the edit date to way after the date on which I last worked on the document.

Google Docs, Sheets, and Slides have three view modes: Editing, Suggesting, and Viewing. The first two cause the file to accept input, which changes the edit date. Viewing Mode, however, displays the file in a read-only state, making it impossible to make (or suggest) changes accidentally.

Since I see many of my old Google-format files as "archived" in my Drive—heck, I have a massive folder named "Archive"—I would love to be able to open files last edited before a certain elapsed time—say, a year ago—in Viewing Mode so as to protect them from twitchy typing fingers.

Is there a way to enact this behavior using Apps Script? or some other way? Or do I just need to back away from the keyboard and mouse any time I want to read an old document or spreadsheet?