Yes, I got it now... :) Next question: Is it possible to write "MacroFirstFileMarker" somewhere else in the first file, because during my other macro I delete the first row. So at the end 'your' macro delete a piece of my data... :(
Mofi, I tried your advise but I get an error: "Search string not found!" What do I have to change in your script? Everything between the quotes ""? Is "MacroFirstFileMarker" a macro or a function?