XLHelper static class is now public (again)

Conditional formatting now leaves the untouched formats alone. Issue 8053

Fixed issue when copying worksheets with headers and footers

Fix to the fix

Fixed issue when adding empty DataTable items

Fixed loading files with repeating number format ids

Setting the inside borders of a spreadsheet no longer calls all cells within.

Prevented the IDE from triggering the rich text of a cell when debugging.

Fixed issue when adding columns to an existing table

Fixed tables with numeric column names and numeric total labels

Fixed issue with conditional formatting and expressions

Ready for release

Back to working on Pivot Tables

Fixed issue when stroke is 0

Fixed memory issue when adjusting height and width to contents.

Fixed adjust to contents with unknown numeric format id

Fixed null reference exception when loading ExtendedFilePropertiesPart

Dumb error in solution file

Fixed row height issue when copying worksheets

Added workbook.AddWorksheet(IXLWorksheet worksheet) overload

Added .Select() method to cells and ranges

Fixed Color.ToString() when using themes and indexed colors. This also fixes Borders, Fills, and Fonts in those cases too.

Fixed issue with comments

Added null reference check to BookViews

Improved save performance (specially when the worksheet has lots of hyperlinks)

Added mm to comment units

Fixed null reference exception loading calculation properties

Improved table filtering speed. ...

Added FileMode.Read when copying the source file.

Improved inserts performance

Fixed issue loading conditional formatting