In build 4.5.0.17 of xlsgen, a number of issues are addressed :

- when rendering a chart with rotated text on axis tick marks, better positioning of the text to avoid clipping with the chart area.

- when reading a chart from XLSX and XLSB files, read drop lines, high-low lines and up-down bars and their associated formattings.

- for pivot tables, better coercing of mixed data types in a column in order to avoid file corruption (Excel super sensitive).