Here are some examples of ADO connection string you can use for opening databases in Database Tour software.

These connection strings contain the most important parameters required for opening databases. May be, you will need to add other parameters to adapt for your needs.
Some parameters may depend on versions of Microsoft Data Access Components (MDAC) and corresponding drivers installed on your computer.
If you cannot find the corresponding example for your database type in this topic, please try to search in Internet. There are many connection string examples are available there.
Please note that using ADO and ADO connection strings is optional in Database Tour. There are also other ways of opening databases.

XLS files

Jet

Provider=Microsoft.Jet.OLEDB.4.0;excel 8.0;DATABASE=C:\MyExcelData.xls;

ACE

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=c:\MyExcelFile.xls;Extended Properties="Excel 8.0;HDR=YES";   (Microsoft ACE must be installed)

ODBC

Provider=MSDASQL.1;Extended Properties="DBQ=C:\MyExcelFile.xls;DefaultDir=C:\;Driver={Microsoft Excel Driver (*.xls)};DriverId=790;"

MDB files

Jet

Provider=Microsoft.Jet.OLEDB.4.0;Data Source=MyDatabaseFile.mdb;

ODBC

Provider=MSDASQL.1;Extended Properties="DBQ=MyDatabaseFile.mdb;Driver={Microsoft Access Driver (*.mdb)};DriverId=25;"

XLSX, XLSB, XLSM files

ACE

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\MyData\myExcel2007file.xlsx;Extended Properties="Excel 12.0;HDR=YES";   (Microsoft ACE must be installed; use it for Excel 2007 files)

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\MyData\myExcel2010file.xlsx;Extended Properties="Excel 14.0;HDR=NO";   (Microsoft ACE must be installed; use it for Excel 2010 files)

ODBC

Driver={Microsoft Excel Driver (*.xls, *.xlsx, *.xlsm, *.xlsb)};DBQ=C:\MyExcelFile.xlsx;   (Microsoft Excel 2007 ODBC Driver must be installed)

ACCDB files

ACE

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\MyData\myAccess2007file.accdb;Persist Security Info=False;   (Microsoft ACE must be installed)

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\MyData\myAccess2007file.accdb;Jet OLEDB:Database Password=MyDbPassword;   (Microsoft ACE must be installed)

ODBC

Driver={Microsoft Access Driver (*.mdb, *.accdb)};Dbq=C:\MyAccessDB.accdb;   (Microsoft Access accdb ODBC Driver must be installed)

Driver={Microsoft Access Driver (*.mdb, *.accdb)};Dbq=C:\MyAccessDB.accdb;SystemDB=C:\MyAccessDB.mdw;   (Microsoft Access accdb ODBC Driver must be installed)

Interbase (GDB), FireBird (FDB) files

OLE DB

provider=sibprovider;location=localhost:;data source=C:\My_db.gdb;user id=SYSDBA;Password=masterkey;   (SIBPROvider Interbase OLE DB Provider must be installed)

ODBC

Driver={INTERSOLV InterBase ODBC Driver (*.gdb)};Server=localhost;Database=localhost:C:\My_db.gdb;Uid=myUsername;Pwd=myPassword;   (Intersolv InterBase ODBC Driver must be installed)

Driver={Easysoft IB6 ODBC};Server=localhost;Database=localhost:C:\My_db.gdb;Uid=myUsername;Pwd=myPassword;   (Easysoft ODBC Driver must be installed)

DRIVER=Firebird/InterBase(r) driver;Uid=myUsername;Pwd=myPassword;DBNAME=C:\My_db.gdb;   (IBPhoenix Open Source ODBC Driver must be installed)

DRIVER=Firebird/InterBase(r) driver;Uid=myUsername;Pwd=myPassword;DBNAME=C:\My_db.fdb;   (IBPhoenix Open Source ODBC Driver must be installed)

HTML, HTM files

Jet

Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties="HTML Import;DATABASE=C:\MyHTMLFile.html";

Visual FoxPro (DBC) files

OLE DB

Provider=vfpoledb;Data Source=C:\MyData\MyVFPDbFile.dbc;Collating Sequence=machine;   (VFP OLE DB Provider must be installed)

ODBC

Driver={Microsoft Visual FoxPro Driver};SourceType=DBC;SourceDB=C:\MyData\MyVFPDbFile.dbc;   (Microsoft Visual FoxPro ODBC Driver must be installed)

Folder with Lotus (WJ2, WK1) files

Jet

Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties="Lotus WJ2;DATABASE=C:\MyLotusFolder";

Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties="Lotus WK1;DATABASE=C:\MyLotusFolder";

Folder with dBase (DBF) files

Jet

Provider=Microsoft.Jet.OLEDB.4.0;dBase 5.0;DATABASE=C:\MyDBaseFolder;

Provider=Microsoft.Jet.OLEDB.4.0;dBase IV;DATABASE=C:\MyDBaseFolder;

ACE

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=c:\MyDBaseFolder;Extended Properties=dBASE IV;   (Microsoft ACE must be installed)

ODBC

Provider=MSDASQL.1;Extended Properties="DefaultDir=C:\MyDBaseFolder;Driver={Microsoft dBase Driver (*.dbf)};DriverId=277;"

Folder with FoxPro (DBF) files

OLE DB

Provider=VFPOLEDB.1;Data Source=D:\MyFoxProFolder;Collating Sequence=MACHINE   (VFP OLE DB Provider must be installed)

Folder with Paradox (DB) files

Jet

Provider=Microsoft.Jet.OLEDB.4.0;Paradox 4.X;DATABASE=C:\MyParadoxFolder;

ACE

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=c:\MyParadoxFolder;Extended Properties=dBASE IV;   (Microsoft ACE must be installed)

ODBC

Provider=MSDASQL.1;Extended Properties="DefaultDir=C:\MyParadoxFolder;Driver={Microsoft Paradox Driver (*.db )};DriverId=26;"

Folder with TXT, CSV, ASC, TAB files

Jet

Provider=Microsoft.Jet.OLEDB.4.0;TEXT;DATABASE=C:\MyCSVFolder;

ODBC

Provider=MSDASQL.1;Extended Properties="DefaultDir=C:\MyCSVFolder;Driver={Microsoft Text Driver (*.txt; *.csv)};DriverId=27;Extensions=asc,csv,tab,txt;"

UDL files

FILE NAME=c:\MyDataLinkFile.udl;

Adaptive Server Anywhere databases

OLE DB

Provider=ASAProv;Data source=myASADatabase;   (Adaptive Server Anywhere OLE DB Provider must be installed)

ODBC

Driver=Adaptive Server Anywhere 7.0;ENG=server.database_name;UID=myUsername;PWD=myPassword;DBN=myDataBase;LINKS=TCPIP(HOST=serverNameOrAddress);   (Adaptive Server Anywhere ODBC Driver must be installed)

DB2 databases

OLE DB

Provider=DB2OLEDB;Network Transport Library=TCPIP;Network Address=xxx.xxx.xxx.xxx;Initial Catalog=MyCatalog;Package Collection=MyPkgCol;Default Schema=mySchema;User ID=myUsername;Password=myPassword;   (Microsoft OLE DB Provider for DB2 must be installed)

Provider=IBMDADB2;Database=myDatabase;Hostname=myServerAddress;Protocol=TCPIP;Port=50000;Uid=myUsername;Pwd=myPassword;   (IBM OLE DB Provider for DB2 must be installed)

ODBC

Driver={IBM DB2 ODBC DRIVER};Database=myDbName;Hostname=myServerAddress;Port=myPortNum;Protocol=TCPIP;Uid=myUserName;Pwd=myPwd   (IBM DB2 Driver for ODBC must be installed)

Informix databases

OLE DB

Provider=Ifxoledbc;Data Source=dbName@serverName;User ID=myUsername;Password=myPassword;   (IBM Informix OLE DB Provider must be installed)

Ingres databases

ODBC

Provider=MSDASQL;DRIVER=Ingres;SRVR=xxxxx;DB=xxxxx;Uid=myUsername;Pwd=myPassword;Extended Properties="SERVER=xxxxx;DATABASE=xxxxx;SERVERTYPE=INGRES";   (ODBC Driver for Ingres must be installed)

SQL Server databases

OLE DB

Provider=sqloledb;Data Source=myServerAddress;Initial Catalog=myDataBase;User Id=myUsername;Password=myPassword;   (Microsoft OLE DB Provider for SQL Server must be installed)

Provider=SQLNCLI;Server=myServerAddress;Database=myDataBase;Uid=myUsername;Pwd=myPassword;   (SQL Native Client 9.0 OLE DB provider must be installed; use it for SQL Server 2005)

Provider=SQLNCLI10;Server=myServerAddress;Database=myDataBase;Uid=myUsername;Pwd=myPassword;   (SQL Server Native Client 10.0 OLE DB Provider must be installed; use it for SQL Server 2008)

Provider=SQLNCLI11;Server=myServerAddress;Database=myDataBase;Uid=myUsername;Pwd=myPassword;   (SQL Server Native Client 11.0 OLE DB Provider must be installed; use it for SQL Server 2012)

ODBC

Driver={SQL Server};Server=myServerAddress;Database=myDataBase;Uid=myUsername;Pwd=myPassword;   (Microsoft SQL Server ODBC Driver must be installed)

Driver={SQL Native Client};Server=myServerAddress;Database=myDataBase;Uid=myUsername;Pwd=myPassword;   (SQL Native Client 9.0 ODBC Driver must be installed; use it for SQL Server 2005)

Driver={SQL Server Native Client 10.0};Server=myServerAddress;Database=myDataBase;Uid=myUsername;Pwd=myPassword;   (SQL Server Native Client 10.0 ODBC Driver must be installed; use it for SQL Server 2008)

Driver={SQL Server Native Client 11.0};Server=myServerAddress;Database=myDataBase;Uid=myUsername;Pwd=myPassword;   (SQL Server Native Client 11.0 ODBC Driver must be installed; use it for SQL Server 2012)

MySQL databases

OLE DB

Provider=MySQLProv;Data Source=mydb;User Id=myUsername;Password=myPassword;   (MySQL OLEDB Provider must be installed)

Oracle databases

OLE DB

Provider=msdaora;Data Source=MyOracleDB;User Id=myUsername;Password=myPassword;   (Microsoft OLE DB Provider for Oracle must be installed)

Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;User Id=myUsername;Password=myPassword;   (Oracle Provider for OLE DB must be installed)

ODBC

Driver={Microsoft ODBC Driver for Oracle};ConnectString=OracleServer.world;Uid=myUsername;Pwd=myPassword;   (Microsoft ODBC Driver for Oracle must be installed)

Pervasive PSQL databases

OLE DB

Provider=PervasiveOLEDB;Data Source=myServerAddress;   (Pervasive OLE DB Provider must be installed)

ODBC

Driver={Pervasive ODBC Client Interface};ServerName=myServerAddress;dbq=@dbname;   (Pervasive ODBC Client Interface must be installed)

PostgreSQL databases

OLE DB

Provider=PostgreSQL OLE DB Provider;Data Source=myServerAddress;location=myDataBase;User ID=myUsername;password=myPassword;   (PostgreSQL OLE DB Provider must be installed)

ODBC

Driver={PostgreSQL};Server=IP address;Port=5432;Database=myDataBase;Uid=myUsername;Pwd=myPassword;   (PostgreSQL ODBC Driver must be installed)

SQLite databases

ODBC

Driver=SQLite3 ODBC Driver;Database=C:\MyData\My_db.db;   (SQLite3 ODBC Driver must be installed)

SQLBase databases

OLE DB

Provider=SQLBaseOLEDB;Data source=myServerAddress;Location=myDataBase;User Id=myUsername;Password=myPassword;   (SQLBase OLE DB Data Provider must be installed)

ODBC DSN

1. Provider=MSDASQL.1;Extended Properties="DSN=IBLOCAL_ADO_EMP;UID=sysdba;PWD=masterkey"

2. MYDSN;

3. Provider=MSDASQL.1;Extended Properties="DSN=ORACLE_DB;UID=ADM;PWD=freedom;"

4. Provider=MSDASQL.1;Data Source=DBF_DATA;Extended Properties="DSN=DBF_DATA;DriverId=533;FIL=dBase 5.0;"