Excel Web Services

Excel Web Services are a set of Web Service APIs which can be used by developers to access published Excel workbooks, read data from the workbooks, updated data to the workbooks etc.

The Excel Web Services provide a Session object which should be used to make successive calls to the web services, so that SharePoint will be able to identify all requests which come from a single application/service. This Session ID should be passed with all requests which are made from the current connection to maintain state.

Excel Web Services receives the inputs from the user and passes the same to Excel Calculation Services (ECS), ECS is responsible for performing the updates to the published Excel sheets, this interaction is abstracted from the user and happens internally, the user just needs to invoke the appropriate web service methods to query/update the data.

The List of Excel web services is available in the following path in the SharePoint server.

http:////_vti_bin/excelservice.asmx

In my Server the path is

http://vpc/_vti_bin/excelservice.asmx

Where vpc is the default site created by SharePoint 2007

Calculate
CalculateA1
CalculateWorkbook
CancelRequest
CloseWorkbook
GetApiVersion
GetCell
GetCellA1
GetRange
GetRangeA1
GetSessionInformation
GetWorkbook
OpenWorkbook
Refresh
SetCell
SetCellA1
SetRange
SetRangeA1

For details on each of these web methods refer to the following Microsoft’s page.
http://msdn.microsoft.com/en-us/library/ff384274(v=office.12).aspx

Related Posts
Excel Services
Excel Services in SharePoint
Components of Excel Services
Publishing Excel Worksheets using Excel Service
Excel Web Services
Reading data from a Published Excel Workbook using Excel Web services
Updating data to a Published Excel Workbook using Excel Web services