Cache parsed values for value cells too

Add test for changing data type (Thanks @prankaty )

Update ISSUE_TEMPLATE.md

Test saving cell value with leading quotation mark and formula correctly

Simplify pivot table example

Make pivot table name case insensitive and validate name after change

Extract and consolidate ValidateName

Remove _rangeList and implement auto-property for XLNamedRange

Extract new method ValidateName

Add more .Contains methods and clean up internal dictionaries with StringComparer.OrdinalIgnoreCase ...

Add IXLPivotTable.Worksheet property
Add XLPivotTable.Name validation (copied from XLTable's Name validation)

CodeMaid reorganise and clean XLPivotTables

CodeMaid organise and clean IXLWorksheets

Add test for persisting cached value under different culture.

Change call .ToString() to .ToInvariantString() ...

Change call .ToString() to .ToInvariantString() when save workbook

Update test framework

Add request to test with latest development build first.

Simplify and rename RebaseShapeIds to RebaseNonVisualDrawingPropertiesIds

Update CI links

Fix determining the first column of used range

Failing test added

Sorted using satements

Added unit test to verify SpreadsheetDocumentType based on SaveAs file extensions.

Fixed GetSpreadsheetDocumentType method to get Template and MacroEnabledTemplate types.

IXLRangeIndex defined ...

Range indexing using QuadTree implemented
Replace searches of intersected ranges with the optimized version

Add and implement XLNamedRangeScope

Park files that don't load correctly yet. We have to tackle them one by one

Remove 2 files with vulnerabilities. They're not supposed to be loaded

Add and test LO files

Refactor TestHelper and ResourceFileExtractor

CodeMaid clean ResourceFileExtractor.cs