# Excel-date Library

Excel date compatibility for importing and exporting dates in Excel format.
Can be imported into L4 files with `IMPORT excel-date`.

### Location

[jl4-core/libraries/excel-date.l4](https://github.com/smucclaw/l4-ide/blob/main/jl4-core/libraries/excel-date.l4)

### Features

- Excel serial date conversion
- Date format conversion
- Excel-compatible calculations
- Handles Excel's 1900 leap year bug

**Note:** Excel date tests are computationally intensive due to large library imports.

**See [excel-date.l4](https://github.com/smucclaw/l4-ide/blob/main/jl4-core/libraries/excel-date.l4) source.**