def truncate(self, filename, maxsize):
        file = open("F:/labOS/funner.dat", "r+")
        a = self.checkFileForPage(filename)
        b = int(a)
        offset = 0
        page = b * 64
        limit = page + maxsize
        t = 64 - maxsize
        trun = page + 64
        while page in range(limit):
            file.seek(1)
            page += 1
            offset += 1

        while limit in range(trun):
            file.seek(limit * 16)
            self.myfile.writeToFile("                ", b, offset)
            limit += 1
            offset += 16