Connecting to a Workbook
Regardless of which edition of SharePoint you are using, set File to the Excel workbook. This path is relative to the following properties:
- Library: The Shared Documents library is used by default. You can use this property to specify another document library in your organization; for example, if you want to connect to OneDrive for Business, set this property to "Documents".
- Folder: You can use this property to specify a path to a subfolder in a library. The path is relative to the library name specified in Library.
Connecting to Spreadsheet Data as Tables
The provider detects the available tables based on the available objects in the underlying API.
The APIs surface different API objects; select the API based on the organization of your spreadsheets and your SharePoint version:
- OData: The OData API allows access to tables defined from Excel table objects (not ranges or spreadsheets), which you create by clicking Insert > Table in Excel. This is the default API. When connecting to the OData API, the provider may not return any tables if you do not have table objects defined in your workbook. Set UseRESTAPI to true to connect to spreadsheets or ranges as tables.
- REST: The REST API enables access to tables defined from Excel table objects, ranges, and spreadsheets. Requesting a large number of rows from ranges and spreadsheets is restricted by the REST API, and the provider limits the number of rows returned to 100 by default. The provider also defaults to detecting column names from the first row; set Header to disable this.
With DefineTables additionally set, you can define tables based on ranges, using the Excel range syntax. A range that is too large will be restricted by the API.
See Data Model for more information on how the provider detects tables and how to query them.
Connecting to SharePoint Online
Set SharePointEdition to "SharePoint Online" and set the User and Password for an Azure Active Directory account.
Set the Url to a site collection to query workbooks in all nested subsites. Set the Url to a site to query workbooks in that site only.
| URL | Example URL |
| Site | https://teams.contoso.com/teamA or https://teamA.contoso.com |
| Site Collection | https://teams.contoso.com |
Connecting to SharePoint On Premises
Set SharePointEdition to "SharePoint OnPremise" and set the Url to your server's name or IP address. Additionally, set SharePointVersion and the authentication values.
To authenticate to SharePoint OnPremise, set AuthScheme to the authentication type and set User and Password, if necessary.
Note: When connecting to SharePoint On-Premises 2010, you must set UseRESTAPI to true.
- Windows (NTLM): This is the most common authentication type. As such, the provider is preconfigured to use NTLM as the default; simply set the Windows User and Password to connect.
- Kerberos and Kerberos Delegation: To authenticate with Kerberos, set AuthScheme to NEGOTIATE. If needed, provide the User and Password properties. To use Kerberos Delegation, set AuthScheme to KERBEROSDELEGATION. KerberosKDC, KerberosSPN, and KerberosRealm enable control over the components of Kerberos authentication.
- Forms: This allows authentication through a custom authentication method, instead of Active Directory. To use this authentication type, set AuthScheme to FORMS and set the User and Password.
Fine Tuning Data Access
To make it easier to access data in advanced integrations, you can use the following:
- TypeDetectionScheme: You can use this property to enable or disable automatic type detection based on the value specified in RowScanDepth.
- RowScanDepth: This property determines the number of rows that will be scanned to determine column data types.
Customizing the SSL Configuration
By default, the provider attempts to negotiate SSL/TLS by checking the server's certificate against the system's trusted certificate store. To specify another certificate, see the SSLServerCert property for the available formats to do so.
Connecting Through a Firewall or Proxy
HTTP Proxies
To connect through the Windows system proxy, you do not need to set any additional connection properties. To connect to other proxies, set ProxyAutoDetect to false.
In addition, to authenticate to an HTTP proxy, set ProxyAuthScheme, ProxyUser, and ProxyPassword, in addition to ProxyServer and ProxyPort.
Other Proxies
Set the following properties:
- To use a proxy-based firewall, set FirewallType, FirewallServer, and FirewallPort.
- To tunnel the connection, set FirewallType to TUNNEL.
- To authenticate, specify FirewallUser and FirewallPassword.
- To authenticate to a SOCKS proxy, additionally set FirewallType to SOCKS5.
Troubleshooting the Connection
To show provider activity from query execution to network traffic, use Logfile and Verbosity. The examples of common connection errors below show how to use these properties to get more context. Contact the support team for help tracing the source of an error or circumventing a performance issue.
- Authentication errors: Typically, recording a Logfile at Verbosity 4 is necessary to get full details on an authentication error.
- Queries time out: A server that takes too long to respond will exceed the provider's client-side timeout. Often, setting the Timeout property to a higher value will avoid a connection error. Another option is to disable the timeout by setting the property to 0. Setting Verbosity to 2 will show where the time is being spent.
- The certificate presented by the server cannot be validated: This error indicates that the provider cannot validate the server's certificate through the chain of trust. If you are using a self-signed certificate, there is only one certificate in the chain.
To resolve this error, you must verify yourself that the certificate can be trusted and specify to the provider that you trust the certificate. One way you can specify that you trust a certificate is to add the certificate to the trusted system store; another is to set SSLServerCert.
413 Request Entity Too Large
This error occurs when a workbook has too much data per row. Generally, solution to this error will be to make the Excel table smaller or to make the rows less dense.
However, setting the following connection properties will enable you to work around this limitation. Note: This workaround is only supported when using the REST API.
- DefineTables: Set this to the desired cell range in your sheet.
- Other: Set this to PageSize=X to determine the number of records that will be paged through at once. Each page should contain less than 100kb. Note that smaller page sizes also entail slower perfomance.