Copy and append data from .dat file

[Makada]

I managed to add some code below to have a seperate csv file.

import time
import schedule    
import csv

#starttime=time.time()
  
def task():  
  
#Input_file: "C:\\Campbellsci\\LoggerNet\\CR1000_Table1.dat"
#Output_file: "C:\\Users\\Makada\\Desktop\\CR1000_Table1 - kopie.dat"
  
 while True:
    """ Not to append duplicate data to output file"""
    existingLines = set(line.strip() for line in open("C:\\Users\\Makada\\Desktop\\CR1000_Table1 - kopie.dat"))
    outfile = open("C:\\Users\\Makada\\Desktop\\CR1000_Table1 - kopie.dat", "a+")
    for content in open("C:\\Campbellsci\\LoggerNet\\CR1000_Table1.dat", "r"):
        if content.strip() not in existingLines: # to void duplicate lines
            outfile.write(content)
            existingLines.add(content)
    outfile.close()

    with open("C:\\Users\\Makada\\Desktop\\CR1000_Table1 - kopie.dat", "r") as f:
        with open("C:\\Users\\Makada\\Desktop\\CR1000_Table1 - kopie.csv", "a+") as f1:
            for line in f:
                f1.write(line)

    
schedule.every().minute.at(":01").do(task)
while True:
    schedule.run_pending()
    time.sleep(1)
refresh()

The CSV file is getting the data but after that, i get a error:

Traceback (most recent call last):
  File "F:\Software\python definitief\copieer bron naar copie alleen nieuw data deze werkt op de minuut precies kopie.py", line 31, in <module>
    schedule.run_pending()
  File "C:\Python\lib\site-packages\schedule\__init__.py", line 563, in run_pending
    default_scheduler.run_pending()
  File "C:\Python\lib\site-packages\schedule\__init__.py", line 94, in run_pending
    self._run_job(job)
  File "C:\Python\lib\site-packages\schedule\__init__.py", line 147, in _run_job
    ret = job.run()
  File "C:\Python\lib\site-packages\schedule\__init__.py", line 466, in run
    ret = self.job_func()
  File "F:\Software\python definitief\copieer bron naar copie alleen nieuw data deze werkt op de minuut precies kopie.py", line 23, in task
    with open("C:\\Users\\Makada\\Desktop\\CR1000_Table1 - kopie.csv", "a+") as f1:
PermissionError: [Errno 13] Permission denied: 'C:\\Users\\Makada\\Desktop\\CR1000_Table1 - kopie.csv'
>>> 

And the csv file isnt displayed the comma seperated data in Excel in columns.
How can i achieve that?

Thanks