Excel Services - Architecture

re: Excel Services - Architecture

XL-Dennis — Thu, 10 Nov 2005 21:56:22 GMT

David,

Looks promising (as with nearly all published info) but in view of the above what will the strategy be IBF? Apparently the Excel services seems to target the same information process as IBF, which for me cause some confusing.

Kind regards,
Dennis

re: Excel Services - Architecture

anon — Fri, 11 Nov 2005 11:58:25 GMT

A couple questions :

1) whatif customer wants ECS and not sharepoint?

2) the ECS is running inproc? How do you avoid crashes?

3) if you were to support VBA macros which, judging the level of usage in public forums alone is assumed "in", would the current server model continue to fly? (isn't VBA a STA?)

re: Excel Services - Architecture

John Drummond — Fri, 11 Nov 2005 13:46:14 GMT

Congratulations making the next release of Excel something to really look forward to.

A few of us are asking the same question about code and although it looks like the answer is 'no' could you please confirm if it will support, now or possibly in the future:
1. VBA macros and Custom Functions
2. C++ XLL's
3. Any Managed Code extensions ( I guess this means VSTO etc)

re: Excel Services - Architecture

David — Fri, 11 Nov 2005 13:56:39 GMT

Any chance to interact with ECS directly, ie for example in process? Or only via the web service? Would be quite cool to have the ability to calculate Excel sheets in my own app.

re: Excel Services - Architecture

dten — Sat, 12 Nov 2005 00:53:42 GMT

The ECS is actually the most interesting part. Does the calculation engine support add-ins and user defined functions in the spreadsheet?

DT

re: Excel Services - Architecture

David Gainer — Sat, 12 Nov 2005 02:36:45 GMT

Dennis, though Excel Services and IBF both live on the server and connect to data, they are very different. The key functionality of Excel Services it the ability to calculate and render spreadsheets authored in Excel 12. This is very different from IBF which is a developer tool for building solutions connecting Office client applications to back-end data systems. Does that help?

Anon, since Excel Services is built on the SharePoint products and technologies platform, it will not be possible to run Excel Services in isolation. I am not 100% sure what you mean by inproc - inproc with what? I can assure you that we are working hard to ensure that the server meets enterprise class robustness and availability. The server will not support VBA.

John and dten, the server will support managed code user-defined functions. We do not support VBA or macros on the server. The server does have the web services API for additional programmability scenarios.

David, for this release there is no direct OM, just the web services interface. You should be able to use the latter to call on spreadsheet calculation from your own applications. We will have a post on this soon.

re: Excel Services - Architecture

XL-Dennis — Sun, 13 Nov 2005 13:10:03 GMT

David,

In view of what You write they are two different concepts so yes it clear the picture for me :)

Thank You,
Dennis

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