Microsoft Access Database Engine Direct

using (OleDbConnection conn = new OleDbConnection(connString))

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Data\CSVFiles\;Extended Properties="text;HDR=Yes;FMT=Delimited"; using System.Data.OleDb; string connString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Data\Sales.xlsx;Extended Properties='Excel 12.0 Xml;HDR=YES;'"; microsoft access database engine

$conn = New-Object System.Data.OleDb.OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Data\Customers.accdb") $conn.Open() $cmd = $conn.CreateCommand() $cmd.CommandText = "SELECT * FROM Orders WHERE OrderDate > #1/1/2023#" $reader = $cmd.ExecuteReader() while ($reader.Read()) Write-Host $reader["OrderID"] string connString = @"Provider=Microsoft.ACE.OLEDB.12.0

conn.Open(); OleDbCommand cmd = new OleDbCommand("SELECT [Region], SUM([Amount]) FROM [Sheet1$] GROUP BY [Region]", conn); OleDbDataReader reader = cmd.ExecuteReader(); while (reader.Read()) Extended Properties='Excel 12.0 Xml

Console.WriteLine($"reader[0]: reader[1]");

Understand its quirks, respect its bitness, and the Access Database Engine will serve you faithfully as the silent bridge between your data islands.