Hello everyone,
in a form vb.net I bind the project to an excel file adding the reference "Microsoft Excel 16.0 Object Library" and with tihs code:

Code:
Imports Microsoft.Office.Interop
Public Class Form1
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Dim a As Excel.Application
        a = CreateObject("EXCEL.APPLICATION")
        a.Visible = True
        a.Workbooks.Open("C:\Cartel1.xlsx")
    End Sub
End Class
I need to know the number of the cells based on a text I enter

So, If I want to search (for example) the word "hello" (lacated in a textbox) in the worksheet, the software have to put the number of the column and of the line, of the cells where the word hello is (in the worksheet), in a textbox.

How can I do? Thank you in advance