>>>>Thanks for this great contribution:)
>>>>
>>>>I expect outputing basic Excel data provided with some control over the UI and WITHOUT RISKY DEPENDANCIES will be helpful to many!
>>>
>>>I don't test yet but XFRX's new version has this feature.
>>
>>Without using automation ?
>>I'm just curious about that.
>>I've seen some aproaches for creating Excel files using XML, that is compatible with the most recent Excel versions.
>
>XFRX already sends Excel with just one button but it was so complicated. I saw yet Martin had added a new feature "Plain XLS" and not tested yet. Just send button at report preview and it's gone. So simple.

You are talking about different things.

There are several ways that we can generate Excel worksheets.

- Using Excel automation commands
- Creating spreadsheet using the XML format
- Creating the XLS file directly, by sending the binaries directly to the file, doing all the byte manipulation before.

Foxypreviewer also allows exporting to XLS type, with just one click! In that case, I use the XML format, thanks to Alejandro Sosa's Excel Listener class, that was modified and updated to work in FoxyPreviewer.

I think that XFRX uses MS-OFFICE automation commands to create the Excel file.