Save File As Text Using Cells For Path & File Name

How to save a file, with file- name. but the directory is to be read in worksheet "towns" in Cell1 (brussels) and filename in worksheet "names" in cell B2 (i.e. winter), so it saves to c:russelswinter.txt as a wordpad or kladblok txt file, that keeps a number, so each time we push a button "go back from worksheet names to worksheet towns" the "number" that is saved in the txt document goes up by value +1. In Flemisch, the "old" code goes as follows, and saves the number in the txt file Factuurnummer7.txt. But I want that the file name (here: FactuurNummer7) can be a variable text issue, which has to be read - as already noticed - in cell B2 (with the word WINTER). So the are 2 worksheets: towns, ans names

pad$ = Application.DefaultFilePath
'controle = Dir(pad$ + "FactuurNummer7.txt")
'If controle = "" Then GoTo EerstAanmaken
'Open pad$ + "Factuurnummer7.txt" For Input As #10
'Input #10, Nummer1
'Close #10......................