diff --git a/docs/_file_suffixes.rst b/docs/_file_suffixes.rst
index f06421b4..f3fac557 100644
--- a/docs/_file_suffixes.rst
+++ b/docs/_file_suffixes.rst
@@ -25,4 +25,33 @@ There are two scenarios where this can happen:
     ================ ========= ========================================
 
 
-Assuming the two targets in `sci_file.fits` are extracted we'll end up with
\ No newline at end of file
+Assuming the two targets in `sci_file.fits` are extracted and they are approximately at the position
+400 and 600 (pixels in spatial axis), after extraction we'll end up with:
+
+.. code-block:: bash
+
+  esci_file_target_1.fits
+  esci_file_target_2.fits
+  elamp_001_390-410.fits
+  elamp_001_590-610.fits
+  elamp_002_390-410.fits
+  elamp_002_590-610.fits
+
+
+The default prefix for extraction is ``e`` and does not have an underscore to separate it from the
+file name.
+
+After wavelength calibration, since there are two suitable lamps and due to the fact that the
+pipeline does not combine solutions, it will save two wavelength calibrated files with each one
+solved by the respective lamp. Then:
+
+.. code-block:: bash
+
+  wesci_file_target_1_ws_1.fits
+  wesci_file_target_1_ws_2.fits
+  wesci_file_target_2_ws_1.fits
+  wesci_file_target_2_ws_2.fits
+  welamp_001_390-410.fits
+  welamp_001_590-610.fits
+  welamp_002_390-410.fits
+  welamp_002_590-610.fits
diff --git a/docs/conf.py b/docs/conf.py
index a53eb39a..0bbc8496 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -39,7 +39,7 @@
               'sphinx.ext.autodoc',
               'sphinx.ext.mathjax',
               'sphinx.ext.intersphinx',
-              'sphinxcontrib.napoleon']
+              'sphinx.ext.napoleon']
 
 
 intersphinx_mapping = {
@@ -81,7 +81,7 @@
 #
 # This is also used if you do content translation via gettext catalogs.
 # Usually you set "language" from the command line for these cases.
-language = None
+language = 'en'
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
diff --git a/goodman_pipeline/core/core.py b/goodman_pipeline/core/core.py
index 61c8ae35..d6caf652 100644
--- a/goodman_pipeline/core/core.py
+++ b/goodman_pipeline/core/core.py
@@ -1149,7 +1149,7 @@ def extraction(ccd,
 
 def extract_fractional_pixel(ccd, target_trace, target_fwhm, extraction_width,
                              background_spacing=3):
-    """Performs an spectrum extraction using fractional pixels.
+    """Performs a spectrum extraction using fractional pixels.
 
     Args:
         ccd (CCDData) Instance of :class:`~astropy.nddata.CCDData` that