Improve function description

Author: antonwolfy

dpnp/dpnp_iface_arraycreation.py

@@ -1721,7 +1721,9 @@ def fromfile(
     Parameters
     ----------
     file : file or str or Path
-        Open file object or filename.
+        An open file object, a string containing the filename, or a Path object.
+        When reading from a file object it must support random access (i.e. it
+        must have tell and seek methods).
     dtype : {None, str, dtype object}, optional
         Data type of the returned array.
         For binary files, it is used to determine the size and byte-order