How check if a file exists in ansible windows?

Question

I am using Ansible on windows and I have to check whether a file exists in C:\Temp. If the file Doesn't exist then I have to skip the task. I am trying to use the win_stat module and this is what I have which isn't working:

- name: Check that the ABC.txt exists
  win_stat:
    path: 'C:\ABC.txt '      

- name: Create DEF.txt file if ABC.txt exists
  win_file:
    path: 'C:\DEF.txt'
    state: touch
  when: stat_file.stat.exists == True 

Answer 1

So I didn't use the win_stat module correctly,

Should have added the register argument in my first 'task'.

This is how it works-

- name: Check that the ABC.txt exists
  win_stat: path= 'C:\ABC.txt'  
  register: stat_file

- name: Create DEF.txt file if ABC.txt exists 
  win_file:
    path: 'C:\DEF.txt'
    state: touch
  when: stat_file.stat.exists == True

Answer 2

When I tried the answer above, it gave me a syntax error, instead I had to write it this way:

- name: Check that the ABC.txt exists
  win_stat: 
    path: 'C:\ABC.txt'  
  register: stat_file

- name: Create DEF.txt file if ABC.txt exists 
  win_file:
    path: 'C:\DEF.txt'
    state: touch
  when: stat_file.stat.exists == True