Microsoft has finally released preview versions of its touch-optimized Word, Excel, and PowerPoint apps for use on tablets running the Windows 10 Technical Preview. Here's what you can expect.

Deep analysis using excel or other analytical software is just not as productive on a tablet. Excel has a tablet version, but you cannot run macros or complicated functions on the tablet versions.

At its core, Grid is absolutely a spreadsheet. But whereas Excel is built from tiny rectangles, Grid features a matrix of squares that are the perfect size for a finger to tap.