ADO.NET Provider for Excel

Build 21.0.8137

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 connecting, see Establishing a Connection.

Authentication


PropertyDescription
AuthSchemeThe type of authentication to use when connecting to remote services.
UserThe Excel user account used to authenticate.
PasswordThe password used to authenticate the user.
SharePointEditionThe edition of SharePoint being used. Set either SharePointOnline or SharePointOnPremise.

Connection


PropertyDescription
URIThe Uniform Resource Identifier (URI) for the Excel resource location.
DefineTablesMap Excel ranges to table names.
HeaderIndicates whether the first row should be used as a column header.
OrientationIndicates whether the data in Excel is laid out horizontally or vertically.
ExcelFileThe location of an Excel file.
BufferChangesIndicates whether to hold changes to the data in memory until the connection is closed.
RegionThe hosting region for your S3-like Web Services.
ProjectIdThe Id of the project where your Google Cloud Storage instance resides.
OracleNamespaceThe Oracle Cloud Object Storage namespace to use.
StorageBaseURLThe URL of a cloud storage service provider.
UseVirtualHostingIf true (default), buckets will be referenced in the request using the hosted-style request: http://yourbucket.s3.amazonaws.com/yourobject. If set to false, the bean will use the path-style request: http://s3.amazonaws.com/yourbucket/yourobject. Note that this property will be set to false, in case of an S3 based custom service when the CustomURL is specified.

AWS Authentication


PropertyDescription
AWSAccessKeyYour AWS account access key. This value is accessible from your AWS security credentials page.
AWSSecretKeyYour AWS account secret key. This value is accessible from your AWS security credentials page.
AWSRoleARNThe Amazon Resource Name of the role to use when authenticating.
AWSPrincipalARNThe ARN of the SAML Identity provider in your AWS account.
AWSRegionThe hosting region for your Amazon Web Services.
AWSSessionTokenYour AWS session token.
MFASerialNumberThe serial number of the MFA device if one is being used.
MFATokenThe temporary token available from your MFA device.

Azure Authentication


PropertyDescription
AzureStorageAccountThe name of your Azure storage account.
AzureAccessKeyThe storage key associated with your Excel account.
AzureSharedAccessSignatureA shared access key signature that may be used for authentication.
AzureTenantThe Microsoft Online tenant being used to access data. If not specified, your default tentant will be used.
AzureEnvironmentThe Azure Environment to use when establishing a connection.

SSO


PropertyDescription
SSOLoginURLThe identity provider's login URL.
SSOPropertiesAdditional properties required to connect to the identity provider in a semicolon-separated list.

Data


PropertyDescription
AllowFormulaWhether or not to treat values starting with an equals (=) sign as formulas during inserts and updates.
EmptyValueModeIndicates whether to read the empty values as empty or as null.
NullValuesA comma separated list which will be replaced with nulls if there are found in the CSV file.
IgnoreCalcErrorIndicates whether to ignore errors that occurred during the calculation.
NullValueModeIndicates whether to read empty cells as null or as empty.
HasCrossSheetReferencesIndicates how cross sheet references are handled.
RecalculateIndicates whether to recalculate all formulas when data is read.
ShowEmptyRowsIndicates whether or not the empty rows should be pushed.
TypeDetectionSchemeDetermines how the provider detects the data types of columns.
UseFastInsertIndicates whether to use the fastInsert when executing Insert Statement.

OAuth


PropertyDescription
InitiateOAuthSet this property to initiate the process to obtain or refresh the OAuth access token when you connect.
OAuthVersionThe version of OAuth being used.
OAuthClientIdThe client Id assigned when you register your application with an OAuth authorization server.
OAuthClientSecretThe client secret assigned when you register your application with an OAuth authorization server.
OAuthAccessTokenThe access token for connecting using OAuth.
OAuthAccessTokenSecretThe OAuth access token secret for connecting using OAuth.
OAuthSettingsLocationThe location of the settings file where OAuth values are saved when InitiateOAuth is set to GETANDREFRESH or REFRESH. Alternatively, this can be held in memory by specifying a value starting with memory://.
CallbackURLThe OAuth callback URL to return to when authenticating. This value must match the callback URL you specify in your app settings.
OAuthGrantTypeThe grant type for the OAuth flow.
OAuthPasswordGrantModeHow to pass Client Id and Secret with OAuthGrantType is set to Password.
OAuthIncludeCallbackURLWhether to include the callback URL in an access token request.
OAuthAuthorizationURLThe authorization URL for the OAuth service.
OAuthAccessTokenURLThe URL to retrieve the OAuth access token from.
OAuthRefreshTokenURLThe URL to refresh the OAuth token from.
OAuthRequestTokenURLThe URL the service provides to retrieve request tokens from. This is required in OAuth 1.0.
OAuthVerifierThe verifier code returned from the OAuth authorization URL.
AuthTokenThe authentication token used to request and obtain the OAuth Access Token.
AuthKeyThe authentication secret used to request and obtain the OAuth Access Token.
OAuthParamsA comma-separated list of other parameters to submit in the request for the OAuth access token in the format paramname=value.
OAuthRefreshTokenThe OAuth refresh token for the corresponding OAuth access token.
OAuthExpiresInThe lifetime in seconds of the OAuth AccessToken.
OAuthTokenTimestampThe Unix epoch timestamp in milliseconds when the current Access Token was created.

JWT OAuth


PropertyDescription
OAuthJWTCertThe JWT Certificate store.
OAuthJWTCertTypeThe type of key store containing the JWT Certificate.
OAuthJWTCertPasswordThe password for the OAuth JWT certificate.
OAuthJWTCertSubjectThe subject of the OAuth JWT certificate.
OAuthJWTIssuerThe issuer of the Java Web Token.
OAuthJWTSubjectThe user subject for which the application is requesting delegated access.

Kerberos


PropertyDescription
KerberosKDCThe Kerberos Key Distribution Center (KDC) service used to authenticate the user.
KerberosRealmThe Kerberos Realm used to authenticate the user with.
KerberosSPNThe service principal name (SPN) for the Kerberos Domain Controller.
KerberosKeytabFileThe Keytab file containing your pairs of Kerberos principals and encrypted keys.
KerberosServiceRealmThe Kerberos realm of the service.
KerberosServiceKDCThe Kerberos KDC of the service.
KerberosTicketCacheThe full file path to an MIT Kerberos credential cache file.

SSL


PropertyDescription
SSLClientCertThe TLS/SSL client certificate store for SSL Client Authentication (2-way SSL).
SSLClientCertTypeThe type of key store containing the TLS/SSL client certificate.
SSLClientCertPasswordThe password for the TLS/SSL client certificate.
SSLClientCertSubjectThe subject of the TLS/SSL client certificate.
SSLModeThe authentication mechanism to be used when connecting to the FTP or FTPS server.
SSLServerCertThe certificate to be accepted from the server when connecting using TLS/SSL.

SSH


PropertyDescription
SSHAuthModeThe authentication method to be used to log on to an SFTP server.
SSHClientCertA certificate to be used for authenticating the user.
SSHClientCertPasswordThe password of the SSHClientCert certificate if it has one.
SSHClientCertTypeThe type of SSHClientCert certificate.

Firewall


PropertyDescription
FirewallTypeThe protocol used by a proxy-based firewall.
FirewallServerThe name or IP address of a proxy-based firewall.
FirewallPortThe TCP port for a proxy-based firewall.
FirewallUserThe user name to use to authenticate with a proxy-based firewall.
FirewallPasswordA password used to authenticate to a proxy-based firewall.

Proxy


PropertyDescription
ProxyAutoDetectThis indicates whether to use the system proxy settings or not. This takes precedence over other proxy settings, so you'll need to set ProxyAutoDetect to FALSE in order use custom proxy settings.
ProxyServerThe hostname or IP address of a proxy to route HTTP traffic through.
ProxyPortThe TCP port the ProxyServer proxy is running on.
ProxyAuthSchemeThe authentication type to use to authenticate to the ProxyServer proxy.
ProxyUserA user name to be used to authenticate to the ProxyServer proxy.
ProxyPasswordA password to be used to authenticate to the ProxyServer proxy.
ProxySSLTypeThe SSL type to use when connecting to the ProxyServer proxy.
ProxyExceptionsA semicolon separated list of destination hostnames or IPs that are exempt from connecting through the ProxyServer .

Logging


PropertyDescription
LogfileA filepath which designates the name and location of the log file.
VerbosityThe verbosity level that determines the amount of detail included in the log file.
LogModulesCore modules to be included in the log file.
MaxLogFileSizeA string specifying the maximum size in bytes for a log file (for example, 10 MB).
MaxLogFileCountA string specifying the maximum file count of log files.

Schema


PropertyDescription
LocationA path to the directory that contains the schema files defining tables, views, and stored procedures.
BrowsableSchemasThis property restricts the schemas reported to a subset of the available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC.
TablesThis property restricts the tables reported to a subset of the available tables. For example, Tables=TableA,TableB,TableC.
ViewsRestricts the views reported to a subset of the available tables. For example, Views=ViewA,ViewB,ViewC.

Caching


PropertyDescription
AutoCacheAutomatically caches the results of SELECT queries into a cache database specified by either CacheLocation or both of CacheConnection and CacheProvider .
CacheProviderThe name of the provider to be used to cache data.
CacheConnectionThe connection string for the cache database. This property is always used in conjunction with CacheProvider . Setting both properties will override the value set for CacheLocation for caching data.
CacheLocationSpecifies the path to the cache when caching to a file.
CacheToleranceThe tolerance for stale data in the cache specified in seconds when using AutoCache .
OfflineUse offline mode to get the data from the cache instead of the live source.
CacheMetadataThis property determines whether or not to cache the table metadata to a file store.

Miscellaneous


PropertyDescription
CharsetSpecifies the session character set for encoding and decoding character data transferred to and from the Excel file. The default value is UTF-8.
ClientCultureThis property can be used to specify the format of data (e.g., currency values) that is accepted by the client application. This property can be used when the client application does not support the machine's culture settings. For example, Microsoft Access requires 'en-US'.
ConnectionLifeTimeThe maximum lifetime of a connection in seconds. Once the time has elapsed, the connection object is disposed.
CultureThis setting can be used to specify culture settings that determine how the provider interprets certain data types that are passed into the provider. For example, setting Culture='de-DE' will output German formats even on an American machine.
CustomHeadersOther headers as determined by the user (optional).
CustomUrlParamsThe custom query string to be included in the request.
IncludeDropboxTeamResourcesIndicates if you want to include Dropbox team files and folders.
MaxRowsLimits the number of rows returned rows when no aggregation or group by is used in the query. This helps avoid performance issues at design time.
OtherThese hidden properties are used only in specific use cases.
PoolIdleTimeoutThe allowed idle time for a connection before it is closed.
PoolMaxSizeThe maximum connections in the pool.
PoolMinSizeThe minimum number of connections in the pool.
PoolWaitTimeThe max seconds to wait for an available connection.
PseudoColumnsThis property indicates whether or not to include pseudo columns as columns to the table.
ReadonlyYou can use this property to enforce read-only access to Excel from the provider.
RowScanDepthThe maximum number of rows to scan to look for the columns available in a table.
RTKThe runtime key used for licensing.
SupportEnhancedSQLThis property enhances SQL functionality beyond what can be supported through the API directly, by enabling in-memory client-side processing.
TimeoutThe value in seconds until the timeout error is thrown, canceling the operation.
UseConnectionPoolingThis property enables connection pooling.

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Build 21.0.8137