The app also tells you information about your files, for instance, the size and creation time of the files. You can use it to zip / unzip compressed files in.

It provides you many features to help you manage the files, including sorting, deleting, creating new folders, moving files between folders, etc. Or you can use it to open 3D files from third party file management app, like DropBox, etc. Just tap on the attachment in you email app, the 3D viewer would be launched automatically. You can also use the app to open 3D files you received as email attachment. Please see instruction in the help page of the app about how to add files through iTunes to the app if you are not familiar with it already. You can add files to the app's document folder through iTunes and use the file open button of the app to load them. For instance, you can use model environment image, or your company's logo.

You can choose any image to be the background image. The app supports rendering 3D objects on top of different background, for instance, you can change background color, make it transparent or use an image as background. You can also use the app to figure out basic dimensions of your model, for instance, the length along x, y or z direction, total surface area, total volume, etc. It is extremely helpful when you want to compare your data sets to make sure everything works correctly. The app supports loading multiple models at the same time so that you can view them together. You can also choose to display it in shading model, or wireframe mode. The app provides many 3D features including rotating model with finger movement, zooming in/out, panning, changing color, changing light intensity, etc. With help of this app, you can view your 3D model anywhere you want, no matter you are at home or traveling abroad. It is the native format of SketchUp, it is also supported by many other popular 3D applications. SKP format is one of the most popular 3D formats. This is a great standard version 3D SKP ( SketchUp ) data file viewer for iPhone.

Sketchup reader