This is a Open Archive icon. We've made it in iOS style, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 12,300 icons, all in the same style and quality.
It's a logo of a rectangle with the longer side up as in portrait style. Inside the rectangle are zipper teeth starting from each upper corner and meeting in the middle of the image with a zipper as if something is being unzipped.
Related to Open Archive Icon
Related icons are the icons with matching tags, as well as all files icons. All icons are in the same flat style. You can either download free PNG icons or buy SVG vectors