Since its first release Open XL is gaining popularity for its features, user-friendly interface and lots of time-saving features. Pre-Requisites It requires Microsoft .NET framework 3.5 and VSTO 3.0 Runtime before it can be installed. Features: Run the charts slide show, access internet explorer, calculate business working days, insert or delete text across ranges, take snapshot of ranges, export to MS Word or MS PowerPoint, sort worksheets, Superhide a worksheet, spell numbers, apply rainbow color to ranges, Change Case, Invert selection, Learn VBA/VSTO Code, Contact a Trainer, Remove Empty Rows/Columns, Insert/Delete Blank Worksheets, Consolidate/Merge Worksheets, Color Sheets Tabs, Select Commented/Formula Cells. Install and check it out yourself. Similar Addins costs $50 over the internet but here it's free. Enjoy !!