How to check an Excel file is already open/ not

There are no direct methods using Exel/Workbook object to find the functionality.

Work around is, we need to find out all open tasks, and from that we will see whether any task with name "Microsoft Excel"

Here in the below code, i have a sample Excel file with name "SampleXL".

Set Word = CreateObject("Word.Application")
Set Tasks = Word.Tasks
i=0
For Each Task in Tasks
    If instr(Task.Name,"Microsoft Excel - SampleXL")>0  Then
            i=1
    end if
Next
If i=1 Then
    print "Excel file is opened"
else
    print "No excel file opened with the name specified"
End If

Word.Quit