Use the official 7-Zip (Windows) or The Unarchiver (macOS).
document: Tap the button repeatedly to advance to the AVR display, as shown above. Full text of "Computing Today 1981" - Internet Archive A.G.0011.7z
If it contains .pdf files, use a standard PDF reader like Adobe Acrobat . Use the official 7-Zip (Windows) or The Unarchiver (macOS)