The following article summarizes good, very comprehensive, personal feeling more everyday use POI or easyPOI stuffing data, but encountered format conversion (such as Excel turn doc, html, etc.), using the official tools openoffice or higher reduction rate efficiency and faster
Summary: https://blog.csdn.net/qq_34190023/article/details/82999054
Itext + Fast format conversion examples POI achieved: https://github.com/caryyu/excel2pdf
