0.4.0

• implemented basic charts support with only line charts currently
• added data validation support (thanks Emil Axelsson emax@chalmers.se)
• fixed reading comments with empty author names (thanks Aleksey Khudyakov alexey.skladnoy@gmail.com for reporting)
• implemented basic pivot table support
• started using hindent to format library code

0.3.0

• implemented number formats
• fixed error of parsing "Default"s in content types (thanks Steve Bigham steve.bigham@gmail.com for reporting)
• fixed parsing workbooks with no shared strings (thanks Steve Bigham steve.bigham@gmail.com for reporting)
• changed the way sheets are stored to allow abitrary sheet order in a workbook
• separated format information from other cell data in FormattedCell
• implemented comment visibility (throught legacy vml drawings)

0.2.4

• added basic images support
• added "normal" cell formula support
• added basic xlsx parsing error reporting (thanks to Brad Ediger brad.ediger@madriska.com)

0.2.3

• added conditional formatting support
• fixed reading empty subelements with defaults (thanks Steve Bigham steve.bigham@gmail.com)

0.2.2.2

• fixed missing from parsing code font family value 0 (Not applicable) (thanks Steve Bigham steve.bigham@gmail.com)
• fixed time type used in haddock example (thanks Manoj manoj.p.gudi@gmail.com)

0.2.2.1

• fixed comments data type names and modules/imports

0.2.2

• added cell comments support
• added custom file properties

0.2.1.2

• loosened dependency on data-default package

0.2.1.1

• fixed parsing shared string table entries with no content (thanks to Yuji Yamamoto whosekiteneverfly@gmail.com)

0.2.1

• added number formats (thanks to Alan Zimmerman alan.zimm@gmail.com)
• loosened dependency on zip-archive package

0.2.0

• added style sheet support (thanks to Edsko de Vries edsko@well-typed.com)
• added high level interface for styling (thanks to Edsko de Vries edsko@well-typed.com)
• added sheet views support (thanks to Edsko de Vries edsko@well-typed.com)
• added page setup support (thanks to Edsko de Vries edsko@well-typed.com)
• switched from System.Time to Data.Time
• added rich text support (thanks to Edsko de Vries edsko@well-typed.com) including shared strings
• added a bit better internals for rendering (thanks to Edsko de Vries edsko@well-typed.com) and parsing

0.1.2

• added lenses to access cells both using RC and XY style coordinates, RC is used by default

0.1.1.1

• fixed use of internal function for parsing shared strings, previous change was unused in practice

0.1.1

• added support for rich text shared strings (thanks to Steve Bigham steve.bigham@gmail.com)

0.1.0.5

• loosened dependency on zlib package

0.1.0.4

• fixed generated xml so it gets read by MS Excel with no warnings (thanks Dmitriy Nikitinskiy nikitinskiy@gmail.com)
• improved shared strings collection by using Vector (thanks Dmitriy Nikitinskiy nikitinskiy@gmail.com)
• empty xml elements don't get emmitted anymore (thanks Philipp Hausmann nikitinskiy@gmail.com)
• imporoved and cleaned up core.xml generation

0.1.0.3

• added "str" cells content extraction as text
• added a notice that formulas in are not yet supported

0.1.0

• better tests and documentation
• lenses for worksheets/cells
• removed streaming support as it needs better API and improved implementaion
• removed CellLocalTime as ambiguous, added CellBool

0.0.1

• initial release