Download 347k Rar -

Open the folder where your text files are and run: copy *.txt combined_text.txt

If you are trying to from a RAR into one "long text" document, here is the most common way to do it: How to Combine Text Files into One Download 347K rar

If "347K rar" is the name of a specific download you're searching for (e.g., from a site like Aminet or a compression challenge forum), please clarify: Open the folder where your text files are and run: copy *