Commented Issue: existing custom properties not visible [7391]

After workbook open the CustomProperties - collection is always empty. Any containing in the given file custom property cannot be read.
Comments: ** Comment from web user: arpicheck **

If anybody is interested in solving this issue:

Get the sourcecode.

XLWorkbook_Load.cs line 70

Extend the if..else structure in the foreach to convert properties of your kind to CustomProperties during the loading phase of the workbook.