Maybe there are two ways to converse a excel to a html file:
1: Use JNI, make a .dll file with VB to open and sava a excel file to html format
This is the vbscript code:
Sub Macro1()
Workbooks.Open Filename:="D:\wcap\doc\Test Report R1.0.xls"
ActiveWorkbook.SaveAs Filename:="D:\wcap\doc\Test Report R1.0.htm", _
FileFormat:=xlHtml, ReadOnlyRecommended:=False, CreateBackup:=False
End Sub
2. Use POI, write a tool by yourself, read the content and other informations from an excel file then output to a html file and format it.
The second implemention is more complex, and in my idea the first solution is better but .dll only work in Windows.
Welcome to other solutions.