How do I put all the data from UPLOADED excel file in ms access by using VB.NET

You don't need DataGridView-broker to be able to import data from Excel into MS Access database.

You can use ADO.NET[^] - OleDb[^] to be able to read Excel and Access files.
All you need to do is to:
1. create OleDbConnection[^]
2. create OleDbCommand[^]
3. execute command to OleDbDataReader
[^]
4. load data to DataTable[^]
5. set datagridview's datasource property[^] to DataTable.

For example:

Dim sFileName As String = "D:\MyUsers.xlsx"
Dim sConStr = String.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties='Excel 12.0;HDR=YES';", sFileName)
Dim dt As DataTable = New DataTable()

'1.
Using connection AS OleDbConnection = New OleDbConnection(sConStr)
    Dim sql As String = "SELECT * FROM [Sheet1$] WHERE UserName Like @UserName;"
    connection.Open()
    '2.
    Using command As OleDbCommand= New OleDbCommand(sql, connection)
        command.Parameters.AddWithValue("@UserName", "%j_L%")
        '3.
        Dim reader As OleDbDataReader = command.ExecuteReader()
        '4.
        dt.Load(reader)
        reader.Close()
        reader.Dispose()
    End Using
End Using
'5.
Me.DataGridView1.DataSource = dt

Easy?

The method to get data from Excel or Access is the same. The only thing which changes is a connection string for Microsoft ACE OLEDB 12.0 provider, see:
Access connection strings - ConnectionStrings.com[^]
Excel connection strings - ConnectionStrings.com[^]
Please, carefully read notes about using ACE OLEDB provider in x86/x64 architecture.

More:
How to: Bind Data to the Windows Forms DataGridView Control | Microsoft Docs[^]

[Update]

You can even use only one connection - to MS Access database - then grab data from MS Excel via using query similar to below one:

INSERT INTO YourTableName (Field1, Field2)
SELECT Field1, Field2
FROM [SheetName$] IN "c:\documents\xldata.xlsx" "EXCEL 12.0;";

See: IN clause (Microsoft Access SQL) | Microsoft Docs[^]
INSERT INTO statement (Microsoft Access SQL) | Microsoft Docs[^]