How to read script from Textbox inside excel sheet and paste into portal

The above solution will work but it has to open the workbook. If you are not willing to do that, VB code will be an another option. Try this code and let me know if this helps @prashantP

    Dim excel As Microsoft.Office.Interop.Excel.Application
    Dim wb As Microsoft.Office.Interop.Excel.Workbook
    Dim ws As Microsoft.Office.Interop.Excel.Worksheet
	excel = New Microsoft.Office.Interop.Excel.Application
	wb = excel.Workbooks.Open("D:\UiPath\CopyAndPasteInExcel\samplefile.xlsx", [ReadOnly]:=False)
    excel.Visible = True
	ws = CType(wb.Sheets("SSMS Script"), Microsoft.Office.Interop.Excel.Worksheet)
    ws.Activate()
	Dim str As String = ws.Shapes.Range("TextBox 1").AlternativeText
	system.Windows.MessageBox.Show(str)
	wb.Close
	excel.Quit