- Modified the behavior of range.InsertRows/Columns. When you insert a column after the range or a row below the range, the range will be expanded to include the newly added rows/columns. If you insert a column before the range or a row above the range, the range will move accordingly but not expand. This is the default behavior but the insert rows/columns now have a parameter for you to specify whether or not to expand the range.
- Added range.ClearStyles() method. It will preserve number/date formats though.
- Added  set only properties to .Cells(...) so now you can do something like: worksheet.Row(1).Cells("1-3,5,7").Value = "Good!";
- Added methods to .Cells(...)
- Removed the properties range.FormulaA1 and range.FormulaR1C1. Please use range.Cells().FormulaA1 and range.Cells().FormulaR1C1 instead.
- Improved save performance, A LOT. (Thanks to GFraser for the help locating the bottlenecks). I still have a few things to do to improve the performance but I wanted to release this version because of the substantial improvements already made.