Connection String Options
The connection string properties are the various options that can be used to establish a connection. This section provides a complete list of the options you can configure in the connection string for this provider. Click the links for further details.
For more information on establishing a connection, see Establishing a Connection.
| Property | Description |
| AuthScheme | Specifies the type of authentication to use when connecting to Microsoft Excel Online. If this property is left blank, the default authentication is used. |
| UseSandbox | A boolean indicating if you are using a sandbox account. The provider makes requests to the production environment by default. |
| Property | Description |
| Workbook | The name or Id of the workbook. |
| Drive | Specifies the Id of the drive. A list of all drives is available from the Drives view. |
| FolderId | Specifies the Id of the folder. |
| IncludeSharePointSites | Specifies whether or not drives for all SharePoint sites are retrieved when querying Drives view. (Note: This property only affects Drives views. |
| Property | Description |
| AzureTenant | Identifies the Microsoft Excel Online tenant being used to access data. Accepts either the tenant's domain name (for example, contoso.onmicrosoft.com ) or its directory (tenant) ID. |
| AzureEnvironment | Specifies the Azure network environment to which you will connect. Must be the same network to which your Azure account was added. |
| Property | Description |
| InitiateOAuth | Specifies the process for obtaining or refreshing the OAuth access token, which maintains user access while an authenticated, authorized user is working. |
| OAuthClientId | Specifies the client ID (also known as the consumer key) assigned to your custom OAuth application. This ID is required to identify the application to the OAuth authorization server during authentication. |
| OAuthClientSecret | Specifies the client secret assigned to your custom OAuth application. This confidential value is used to authenticate the application to the OAuth authorization server. (Custom OAuth applications only.). |
| OAuthAccessToken | Specifies the OAuth access token used to authenticate requests to the data source. This token is issued by the authorization server after a successful OAuth exchange. |
| OAuthSettingsLocation | Specifies the location of the settings file where OAuth values are saved. |
| CallbackURL | Identifies the URL users return to after authenticating to Microsoft Excel Online via OAuth (Custom OAuth applications only). |
| Scope | A space-seperated list of scopes. |
| State | Optional value for representing extra OAuth state information. |
| OAuthVerifier | Specifies a verifier code returned from the OAuthAuthorizationURL . Used when authenticating to OAuth on a headless server, where a browser can't be launched. Requires both OAuthSettingsLocation and OAuthVerifier to be set. |
| OAuthRefreshToken | Specifies the OAuth refresh token used to request a new access token after the original has expired. |
| OAuthExpiresIn | Specifies the duration in seconds, of an OAuth Access Token's lifetime. The token can be reissued to keep access alive as long as the user keeps working. |
| OAuthTokenTimestamp | Displays a Unix epoch timestamp in milliseconds that shows how long ago the current access token was created. |
| Property | Description |
| OAuthJWTCert | Supplies the name of the client certificate's JWT Certificate store. |
| OAuthJWTCertType | Identifies the type of key store containing the JWT Certificate. |
| OAuthJWTCertPassword | Provides the password for the OAuth JWT certificate used to access a password-protected certificate store. If the certificate store does not require a password, leave this property blank. |
| OAuthJWTCertSubject | Identifies the subject of the OAuth JWT certificate used to locate a matching certificate in the store. Supports partial matches and the wildcard '*' to select the first certificate. |
| OAuthJWTIssuer | The issuer of the Java Web Token. |
| OAuthJWTSubject | The user subject for which the application is requesting delegated access. |
| Property | Description |
| SSLServerCert | Specifies the certificate to be accepted from the server when connecting using TLS/SSL. |
| Property | Description |
| FirewallType | Specifies the protocol the provider uses to tunnel traffic through a proxy-based firewall. |
| FirewallServer | Identifies the IP address, DNS name, or host name of a proxy used to traverse a firewall and relay user queries to network resources. |
| FirewallPort | Specifies the TCP port to be used for a proxy-based firewall. |
| FirewallUser | Identifies the user ID of the account authenticating to a proxy-based firewall. |
| FirewallPassword | Specifies the password of the user account authenticating to a proxy-based firewall. |
| Property | Description |
| ProxyAutoDetect | Specifies whether the provider checks your system proxy settings for existing proxy server configurations, rather than using a manually specified proxy server. |
| ProxyServer | Identifies the hostname or IP address of the proxy server through which you want to route HTTP traffic. |
| ProxyPort | Identifies the TCP port on your specified proxy server that has been reserved for routing HTTP traffic to and from the client. |
| ProxyAuthScheme | Specifies the authentication method the provider uses when authenticating to the proxy server specified in the ProxyServer connection property. |
| ProxyUser | Provides the username of a user account registered with the proxy server specified in the ProxyServer connection property. |
| ProxyPassword | Specifies the password of the user specified in the ProxyUser connection property. |
| ProxySSLType | Specifies the SSL type to use when connecting to the proxy server specified in the ProxyServer connection property. |
| ProxyExceptions | Specifies a semicolon-separated list of destination hostnames or IPs that are exempt from connecting through the proxy server set in the ProxyServer connection property. |
| Property | Description |
| Logfile | Specifes the file path to the log file where the provider records its activities, such as authentication, query execution, and connection details. |
| Verbosity | Specifies the verbosity level of the log file, which controls the amount of detail logged. Supported values range from 1 to 5. |
| LogModules | Specifies the core modules to include in the log file. Use a semicolon-separated list of module names. By default, all modules are logged. |
| MaxLogFileSize | Specifies the maximum size of a single log file in bytes. For example, '10 MB'. When the file reaches the limit, the provider creates a new log file with the date and time appended to the name. |
| MaxLogFileCount | Specifies the maximum number of log files the provider retains. When the limit is reached, the oldest log file is deleted to make space for a new one. |
| Property | Description |
| Location | Specifies the location of a directory containing schema files that define tables, views, and stored procedures. Depending on your service's requirements, this may be expressed as either an absolute path or a relative path. |
| BrowsableSchemas | Optional setting that restricts the schemas reported to a subset of all available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC . |
| Tables | Optional setting that restricts the tables reported to a subset of all available tables. For example, Tables=TableA,TableB,TableC . |
| Views | Optional setting that restricts the views reported to a subset of the available tables. For example, Views=ViewA,ViewB,ViewC . |
| Header | Indicates whether or not the provider should detect column names from the first row. |
| IncludePrimaryKey | Controls whether the driver includes an auto-generated primary key column in the table definition. |
| PrimaryKeyIdentifier | Specifies the name of the primary key column that holds the row number. |
| DefineTables | Define the ranges within a worksheet that will appear as tables. |
| IncludePreRangeColumns | Controls whether to include columns that appear before the specified Excel range. |
| Property | Description |
| AutoCache | Specifies whether the content of tables targeted by SELECT queries is automatically cached to the specified cache database. |
| CacheProvider | The namespace of an ADO.NET provider. The specified provider is used as the target database for all caching operations. |
| CacheDriver | The driver class of a JDBC driver. The specified driver is used to connect to the target database for all caching operations. |
| CacheConnection | Specifies the connection string for the specified cache database. |
| CacheLocation | Specifies the path to the cache when caching to a file. |
| CacheTolerance | Notes the tolerance, in seconds, for stale data in the specified cache database. Requires AutoCache to be set to True. |
| Offline | Gets the data from the specified cache database instead of live Microsoft Excel Online data. |
| CacheMetadata | Determines whether the provider caches table metadata to a file-based cache database. |
| Property | Description |
| TypeDetectionScheme | Determines the method for identifying the data types of columns. |
| AllowFormula | Whether or not to treat values starting with an equals (=) sign as formulas during inserts and updates. |
| IncludeFileExtensions | Specifies whether file extensions should be included in table names. |
| MaxRows | Specifies the maximum number of rows returned for queries that do not include either aggregation or GROUP BY. |
| NullValueMode | Indicates whether to read empty cells as null or as empty. |
| Other | Specifies additional hidden properties for specific use cases., to be used only when our Support team advises it, to address specific issues. See Remarks for details. |
| Pagesize | The maximum number of results to return per page from Microsoft Excel Online when UsePagination is True. |
| PseudoColumns | Specifies the pseudocolumns to expose as table columns, expressed as a string in the format 'TableName=ColumnName;TableName=ColumnName'. |
| Readonly | Toggles read-only access to Microsoft Excel Online from the provider. |
| RowScanDepth | The maximum number of rows to scan to look for the columns available in a table. |
| RTK | Specifies the runtime key for licensing the provider. If unset or invalid, the provider defaults to the standard licensing method. This property is only required in environments where the standard licensing method is unsupported or requires a runtime key. |
| SeparatorCharacter | Specifies the character used to separate the workbook name and worksheet name in the generated table name. |
| SharepointURL | The base URL of your Sharepoint Server. |
| ShowEmptyRows | Indicates whether the rows that contain no data (empty rows) should be pushed to the output. |
| ShowSharedDocuments | Whether or not to show shared documents. |
| Timeout | Specifies the maximum time, in seconds, that the provider waits for a server response before throwing a timeout error. |
| UsePagination | Whether to use client-side paging. |
| UserDefinedViews | Specifies a filepath to a JSON configuration file that defines custom views. The provider automatically detects and uses the views specified in this file. |
| UseSearchAPI | Specifies whether the CData ADO.NET Provider for Microsoft Excel Online should use the /search(q='.xls') endpoint to locate and retrieve workbook files. When set to true (default) , the driver performs a targeted search to list only workbook files, improving efficiency in large directories. If set to false, all items are listed using the /children endpoint, and workbook files are filtered client-side. |
| UseSimpleNames | Specifies whether or not simple names should be used for tables and columns. |
| ValueInputOption | Determines how the provider parses values the user submits to Microsoft Excel Online. |
| ValueRenderOption | Determines how the provider renders values in the output. |