Test regression.

Author: shyuep

src/pymatgen/core/structure.py

@@ -4104,7 +4104,7 @@ def from_file(cls, filename: PathLike) -> IMolecule | Molecule:  # type:ignore[o
         filename = str(filename)
 
         with zopen(filename, mode="rt", encoding="utf-8") as file:
-            contents: str = file.read().decode("utf-8")
+            contents: str = file.read()
         fname = filename.lower()
         if fnmatch(fname, "*.xyz*"):
             return cls.from_str(contents, fmt="xyz")