I am new with VBA and I am struggling when trying to run a simple command.

I want to open a workbook (*name = test.xlsx*) which is saved in a specific path (*C:\Users\u16086\Desktop\Folder*) in my PC with a VBA code. 

I defined two names in my first excel that are two parameters that I can modify if the path or the name of the file is different:

**path**: C:\Users\u16086\Desktop\Folder

**file\_name**: test.xlsx

The code I wrote is:

```
Option Explicit

Sub openworksheet()
    Dim path As String
    Dim file_name As String
    Workbooks.Open Filename:=path & file_name
End Sub

```

I ran the code, but it says there’s an error *run-time error1004*. How do I solve this problem?