References

summary
public	C Cell Cell intended to provide user access to the contents of Cell within an xlsx.Row.
public	C Col The column of the Sheet.
public	C File This is the main class, use it:
public	C Row Row of the sheet.
public	C Sheet Sheet of the xlsx file.
public	C Alignment Alignment of the Style.
public	C Border Border of the Style and border type have: `none`, `thin`, `medium`, `thick`, `dashed`, `dotted`, `double`
public	C Fill Fill of the Style
public	C Font Font of the Style
public	C Style Style class for set Cell styles.
public	V NumFmt: Object Number format table