Select specific zone in .txt file

[snippsat]

Make sure it only open .txt file and '.' you run in folder with files or specify a path.
Example make a couple of files and extract number:

from pathlib import Path
import re

current_dir = Path(".")
lst = []
for obj in current_dir.iterdir():
    if obj.is_file() and obj.suffix.endswith('.txt'):
        with open(obj) as f:
            lst.append(re.search(r'\d\.\d\s(-\d.\d+)', f.read()).group(1))

Output:
>>> lst
['-2.868', '-9.999']
>>> [float(i) for i in lst]
[-2.868, -9.999]