Excel ADODB with Execute Query




I want to download data from Excel Using ADODB, but I’m struggling with connection. I’m using Execute Query with following parameters:
ConnectionString - “Provider=Microsoft.ACE.OLEDB.12.0;Data Source=” + ArchivePath + "; Extended Properties=Excel 12.0 Xml;HDR=YES; "
SQL - “select * from [OldCases]”

The problem is that I receive Validation error - “None of the overload groups have all their required/optional activity arguments configured.”

When I add Provider Name - “Microsoft.ACE.OLEDB.12.0” validation error disappears, but now I get


I will be really grateful for any suggestions.


@heynow check input and output variables, excel path and data once.


I have only SQL statement in Input, parameters are empty, output is DataTable that is not initialized before.

Sheet name and path are correct, ReadRange works with the same data.


@heynow what OldCases here refer in below query


Sheet name, it’s correct.


@heynow try below one once and let me know

“select * from [OldCases$]”


Still getting Object Reference error.

I think main question is what should be typed into ProviderName field, Microsoft Ace is not available in UiPath dropdown.

I tried to do this in Invoke Code Activity, but I get deserialize JSON error.

Result = New DataTable()
Dim conn As New OleDb.OleDbConnection
Dim comm As New OleDb.OleDbCommand
Dim da As New OleDb.OleDbDataAdapter
conn.ConnectionString = “Provider=Microsoft.ACE.OLEDB.12.0;Data Source=” + Path + “; Extended Properties=Excel 12.0 Xml;HDR=YES;”
comm.CommandText = “select * from [OldCases]”
comm.Connection = conn
da.SelectCommand = comm


@heynow Hi i don’t know what exactly wrong with your code, but i suggest alternate connection string and provider name

connection string

“Provider=Microsoft.ACE.OLEDB.12.0;Data Source=” & ExcelPath & “;Extended Properties=‘Excel 12.0 Xml;HDR=YES;IMEX=-1’;”

Provider name



Getting Object reference error.


@VasuNaidu Set default value for datatatable variable as New DataTable().

Try above once it may solve ur problem.


I’m not able to read the .xls files using OLEDB provider. How to read such files without using Excel Application Scope activity?


@VasuNaidu Sorry i dont have idea bro.