import glob import binascii filename = 'result.zip' with open(filename, 'rb') as f: content = f.read() hex = str(binascii.hexlify(content)) sz = len(hex) step = 10 for i in range(step): with open(f"out-{i}.txt", "w") as f: f.write(hex[sz//step * i: min(sz//step * (i + 1), sz)]) construct = "" for f in sorted(glob.glob("tmp/out*")): with open(f, 'r') as inf: construct += inf.read() bytes = binascii.unhexlify(construct[2:-1]) with open("constuction.zip", 'wb') as f: f.write(bytes)