SKP is a 3D file format that is native to SketchUp software, a 3D modeling software. Like any 3D format, SKP files also store 3D models, and they consist of sketches, layers, model information, ...
Spreadsheets created in Apple Numbers can be wondrous things, but opening them in Excel on a Windows PC is something of a headache. It can be done, though, with a little help from iCloud. In this ...