This release improves compatibility with different spreadsheet formats, simplifies cell font and formatting APIs, and drops support for Carthage. Additionally, Xcode 11.3 on macOS is now the oldest supported version for building CoreXLSX.

Breaking changes:

• Make parseSharedStrings return optional value (#122) via @MaxDesiatov
• Test with Xcode 12, drop Carthage and Xcode 10 support (#140) via @MaxDesiatov

Closed issues:

• Unable to sort columns by intValue (#137)
• Cannot initialize SchemaType from invalid String value (#136)
• Odd cell.s value (#134)
• 0.13.0 not available on Cocoapods (#133)
• Unable to read xlsx file (#130)
• Increase speed of parsing? (#127)
• .xlsx File not opening with XLSXFile() (#125)
• Getting Data From a specific Worksheet (#124)
• ArchiveEntryNotFound error (#121)

Merged pull requests:

• Compare ColumnReference by intValue (#139) via @MaxDesiatov
• Add missing SchemaType.webExtensionTaskPanes (#138) via @MaxDesiatov
• Add font(in:) and format(in:) functions (#135) via @MaxDesiatov
• Test with Swift 5.3 for Linux (#132) via @MaxDesiatov
• Generate and publish docs with swift-doc (#131) via