This is the Otwórz w oknie icon for Windows 10. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.
The object is a box with a line across the top so that it is two spaces with the one on top being very narrow. There are three dots on the left side of the top portion. There is an arrow starting at the bottom left corner of the large portion of the box and it points diagonally to the top right corner of the box.