Excel Viewer ( xls and xlsx ) solved.

[Flo Boj]

git clone https://github.com/dream-num/LuckyexcelDemo.git excel-viewer

from that git-clone copy inner directories

 css/ plugins/ assets/ expendPlugins/ 

to your remote  htdocs folder (nginx)

also find (again inside luckyclone)  luckyexcel.umd.js,luckysheet.umd.js and plugin.js 

and copy to htdocsfolder

pull files attached to htdocs - folder of your remote  

from inside idempiere copy your xls to your remote htdocs folder (there use filename "meineexcel.xls") and run "php xlstoxlsx.php" to get meineexcel.xlsx.

OR just copy your xlsx to  your htdocs folder.

finally run "excelviewer.php" , and do your worst to your  excel !!

Inside Idempiere,  IFrame   your nginx/excelviewer.php .

Done.

Somewhat  missing dunno maybe its inside gitclone I provided inside line 1.

Have a lot of fun !

Florian

[Flo Boj]

forgot

curl -sS https://getcomposer.org/installer | php
php composer.phar require phpoffice/phpspreadsheet:1.28

todo : upload-button for finished excel to MAttachmentEntry where your guy comes from, using Idempiere-zkoss or so