diff --git a/.codespell/ignore_lines.txt b/.codespell/ignore_lines.txt
new file mode 100644
index 0000000..07fa7c8
--- /dev/null
+++ b/.codespell/ignore_lines.txt
@@ -0,0 +1,2 @@
+;; Please include filenames and explanations for each ignored line.
+;; See https://docs.openverse.org/meta/codespell.html for docs.
diff --git a/.codespell/ignore_words.txt b/.codespell/ignore_words.txt
new file mode 100644
index 0000000..04b4fcf
--- /dev/null
+++ b/.codespell/ignore_words.txt
@@ -0,0 +1,8 @@
+;; Please include explanations for each ignored word (lowercase).
+;; See https://docs.openverse.org/meta/codespell.html for docs.
+
+;; abbreviation for "materials" often used in a journal title
+mater
+
+;; Frobenius norm used in np.linalg.norm
+fro
diff --git a/LICENSE.rst b/LICENSE.rst
index 171b401..1f80da0 100644
--- a/LICENSE.rst
+++ b/LICENSE.rst
@@ -8,4 +8,4 @@ prohibited.  If you don’t know whether or not your anticipated use is under
 a license, you must contact Prof. Simon Billinge at sb2896@columbia.edu.
 Use of this software without a license is prohibited.
 
-For more information please email Prof. Simon Billinge at sb2896@columbia.edu
\ No newline at end of file
+For more information please email Prof. Simon Billinge at sb2896@columbia.edu
diff --git a/requirements/conda.txt b/requirements/conda.txt
index ead0e88..c944f3b 100644
--- a/requirements/conda.txt
+++ b/requirements/conda.txt
@@ -4,4 +4,4 @@ pyface
 scipy
 traits
 pyfai
-matplotlib
\ No newline at end of file
+matplotlib
diff --git a/src/diffpy/srxplanargui/__init__.py b/src/diffpy/srxplanargui/__init__.py
index 66f2325..19cf2a0 100644
--- a/src/diffpy/srxplanargui/__init__.py
+++ b/src/diffpy/srxplanargui/__init__.py
@@ -12,7 +12,7 @@
 # See LICENSE.rst for license information.
 #
 ##############################################################################
-"""xPDFsuite, a software for PDF transformation and visualization."""
+"""XPDFsuite, a software for PDF transformation and visualization."""
 
 # package version
 from diffpy.srxplanargui.version import __version__  # noqa
diff --git a/src/diffpy/srxplanargui/calibration.py b/src/diffpy/srxplanargui/calibration.py
index 5a1b986..0388596 100644
--- a/src/diffpy/srxplanargui/calibration.py
+++ b/src/diffpy/srxplanargui/calibration.py
@@ -16,10 +16,6 @@
 import re
 import sys
 
-from diffpy.srxconfutils.tools import module_exists_lower
-from diffpy.srxplanar.selfcalibrate import selfCalibrate
-from diffpy.srxplanar.srxplanar import SrXplanar
-from diffpy.srxplanar.srxplanarconfig import checkMax
 from pyface.api import ImageResource
 from traits.api import (
     Bool,
@@ -38,6 +34,10 @@
 from traitsui.api import Group, Handler, HGroup, Item, VGroup, View
 from traitsui.menu import CancelButton, OKButton
 
+from diffpy.srxconfutils.tools import module_exists_lower
+from diffpy.srxplanar.selfcalibrate import selfCalibrate
+from diffpy.srxplanar.srxplanar import SrXplanar
+from diffpy.srxplanar.srxplanarconfig import checkMax
 from diffpy.srxplanargui.srxconfig import SrXconfig
 
 ETSConfig.toolkit = "qt"
diff --git a/src/diffpy/srxplanargui/imageplot.py b/src/diffpy/srxplanargui/imageplot.py
index 508e2e7..0679bc7 100644
--- a/src/diffpy/srxplanargui/imageplot.py
+++ b/src/diffpy/srxplanargui/imageplot.py
@@ -701,7 +701,7 @@ class AdvHint(HasTraits):
 compared to their local environment
 Average mask: Mask the pixels too bright or too dark
 compared to the average intensity at the similar diffraction angle.
-Currect calibration information is required."""
+Correct calibration information is required."""
     )
 
     advhint_view = View(
diff --git a/src/diffpy/srxplanargui/live.py b/src/diffpy/srxplanargui/live.py
index 283b9a8..7372c31 100644
--- a/src/diffpy/srxplanargui/live.py
+++ b/src/diffpy/srxplanargui/live.py
@@ -16,7 +16,6 @@
 import os
 import sys
 
-from diffpy.srxplanar.srxplanar import SrXplanar
 from pyface.api import GUI, ImageResource, SplashScreen
 from traits.api import Any, on_trait_change
 from traits.etsconfig.api import ETSConfig
@@ -32,6 +31,7 @@
 )
 from traitsui.menu import OKButton
 
+from diffpy.srxplanar.srxplanar import SrXplanar
 from diffpy.srxplanargui.calibration import Calibration
 from diffpy.srxplanargui.help import SrXguiHelp
 from diffpy.srxplanargui.selectfiles import AddFiles
diff --git a/src/diffpy/srxplanargui/selectfiles.py b/src/diffpy/srxplanargui/selectfiles.py
index 005f364..94ee6ac 100644
--- a/src/diffpy/srxplanargui/selectfiles.py
+++ b/src/diffpy/srxplanargui/selectfiles.py
@@ -52,7 +52,6 @@
     from diffpy.pdfgete.functs import sortKeyNumericString
 
 from diffpy.srxplanar.loadimage import openImage, saveImage
-
 from diffpy.srxplanargui.datacontainer import DataContainer
 from diffpy.srxplanargui.imageplot import ImagePlot
 from diffpy.srxplanargui.srxconfig import SrXconfig
@@ -94,7 +93,7 @@ class AddFiles(HasTraits):
 
     srxconfig = Instance(SrXconfig)
 
-    # The currenty inputdir directory being searched:
+    # The currently inputdir directory being searched:
     # inputdir = DelegatesTo('srxconfig')
     inputdir = Directory()  # , entries = 10 )
 
diff --git a/src/diffpy/srxplanargui/srxconfig.py b/src/diffpy/srxplanargui/srxconfig.py
index b734e44..b9ee4c6 100644
--- a/src/diffpy/srxplanargui/srxconfig.py
+++ b/src/diffpy/srxplanargui/srxconfig.py
@@ -17,6 +17,11 @@
 import os
 
 import numpy as np
+from pyface.api import ImageResource
+from traits.api import Bool, Enum, Property, on_trait_change
+from traits.etsconfig.api import ETSConfig
+from traitsui.api import Group, Item, View
+
 from diffpy.srxconfutils.configtraits import ConfigBaseTraits
 from diffpy.srxplanar.srxplanarconfig import (
     _description,
@@ -24,10 +29,6 @@
     _optdatalist,
     checkMax,
 )
-from pyface.api import ImageResource
-from traits.api import Bool, Enum, Property, on_trait_change
-from traits.etsconfig.api import ETSConfig
-from traitsui.api import Group, Item, View
 
 ETSConfig.toolkit = "qt"
 
@@ -109,7 +110,7 @@ class SrXconfig(ConfigBaseTraits):
 
     _optdatalist = _optdatalist
 
-    _defaultdata = {"configfile": [], "headertitle": "SrXgui configration"}
+    _defaultdata = {"configfile": [], "headertitle": "SrXgui configuration"}
 
     rotation = Property(
         depends_on="rotationd", fget=lambda self: np.radians(self.rotationd)
diff --git a/src/diffpy/srxplanargui/srxgui.py b/src/diffpy/srxplanargui/srxgui.py
index d3e7d21..8f35ec8 100644
--- a/src/diffpy/srxplanargui/srxgui.py
+++ b/src/diffpy/srxplanargui/srxgui.py
@@ -16,7 +16,6 @@
 import os
 import sys
 
-from diffpy.srxplanar.srxplanar import SrXplanar
 from pyface.api import ImageResource
 from traits.api import Any, Button, File, HasTraits, Instance
 from traits.etsconfig.api import ETSConfig
@@ -33,6 +32,7 @@
 )
 from traitsui.menu import CancelButton, OKButton
 
+from diffpy.srxplanar.srxplanar import SrXplanar
 from diffpy.srxplanargui.calibration import Calibration
 from diffpy.srxplanargui.help import SrXguiHelp
 from diffpy.srxplanargui.selectfiles import AddFiles
diff --git a/src/diffpy/srxplanargui/srxplanargui_app.py b/src/diffpy/srxplanargui/srxplanargui_app.py
index 5b38aeb..653c323 100644
--- a/src/diffpy/srxplanargui/srxplanargui_app.py
+++ b/src/diffpy/srxplanargui/srxplanargui_app.py
@@ -7,8 +7,8 @@ def main():
     parser = argparse.ArgumentParser(
         prog="diffpy.srxplanargui",
         description=(
-            "xPDFsuite, a software for PDF transformation and visualization.\n\n"
-            "For more information, visit: "
+            "xPDFsuite, a software for PDF transformation"
+            " and visualization.\n\n For more information, visit: "
             "https://github.com/diffpy/diffpy.srxplanargui/"
         ),
         formatter_class=argparse.RawDescriptionHelpFormatter,