Adds assemblies for Microsoft .NET 5.
Features
- Added Microsoft .NET 5 support - The Spreadsheet.WPF distribution now includes assemblies for .NET 5.
- Miscellaneous
- Custom format strings can now contain color names in square brackets, compatible with Microsoft Excel color specifiers.
- Extends the set of expression types in which blank cells are promoted to zeros or empty strings when referenced from formulas.
- Names of named ranges can now include backslash and question mark symbols.