Modified base.py get_values_for_csv() to prevent extra decimal places for float16, float32 in output

Author: akj2018

pandas/core/indexes/base.py

@@ -7755,12 +7755,12 @@ def get_values_for_csv(
         if float_format is None and decimal == ".":
             mask = isna(values)
 
-            if not quoting:
-                values = values.astype(str)
-            else:
-                values = np.array(values, dtype="str")   # Convert float16 -> string
-                values = values.astype(float, copy=False)   # Parse string -> Python float64
-
+            # GH60699
+            # Ensure quoting don't add extra decimal places in output for float16, float32 
+            if values.dtype in [np.float16, np.float32]:
+                values = np.array(values, dtype="str")  
+                values = values.astype(float, copy=False)  
+            
             values = values.astype(object, copy=False)
             values[mask] = na_rep
             return values