Credits ------- ``numbers-parser`` was built by `Jon Connell `__ but relies heavily on from `prior work `__ by `Peter Sobot `__ to read the IWA format archives used by Apple’s iWork family of applications, and to regenerate the mapping files required for Python. Both modules are derived from `previous work `__ by `Sean Patrick O’Brien `__. Decoding the data structures inside Numbers files was helped greatly by `Stingray-Reader `__ by `Steven Lott `__. Formula tests were adapted from JavaScript tests used in `fast-formula-parser `__. Decimal128 conversion to and from byte storage was adapted from work done by the `SheetsJS project `__. SheetJS also helped greatly with some of the steps required to successfully save a Numbers spreadsheet.