diff --git a/mapping_BGB/script/cleanTANTT.py b/mapping_BGB/script/cleanTANTT.py
new file mode 100644
index 0000000..6be985b
--- /dev/null
+++ b/mapping_BGB/script/cleanTANTT.py
@@ -0,0 +1,79 @@
+# rename TANTT database to 'TANTT.csv'
+# put 'TANTT.csv' and this script in the same folder
+# locate the folder in terminal
+# enter command in terminal 'python exportGNT_M.py'
+
+import re
+
+inputFile = 'TANTT.csv'
+outputFile = 'TANTT_clean.csv'
+
+# export latest glosses
+
+f = open(inputFile,'r')
+newData = f.read()
+f.close()
+
+# clean up
+newData = re.sub('\n[\n]+?([^\n])', r'\n\1', newData, flags=re.M)
+newData = re.sub(' [ ]+?([^ ])', r' \1', newData, flags=re.M)
+newData = re.sub('^ ', '', newData, flags=re.M)
+newData = re.sub(' \t', '\t', newData, flags=re.M)
+newData = re.sub('\t ', '\t', newData, flags=re.M)
+newData = re.sub('\A[\d\D]*?\n41_Mat', '41_Mat', newData, flags=re.M)
+
+# book no
+newData = re.sub('^41_', '40	', newData, flags=re.M)
+newData = re.sub('^42_', '41	', newData, flags=re.M)
+newData = re.sub('^43_', '42	', newData, flags=re.M)
+newData = re.sub('^44_', '43	', newData, flags=re.M)
+newData = re.sub('^45_', '44	', newData, flags=re.M)
+newData = re.sub('^46_', '45	', newData, flags=re.M)
+newData = re.sub('^47_', '46	', newData, flags=re.M)
+newData = re.sub('^48_', '47	', newData, flags=re.M)
+newData = re.sub('^49_', '48	', newData, flags=re.M)
+newData = re.sub('^50_', '49	', newData, flags=re.M)
+newData = re.sub('^51_', '50	', newData, flags=re.M)
+newData = re.sub('^52_', '51	', newData, flags=re.M)
+newData = re.sub('^53_', '52	', newData, flags=re.M)
+newData = re.sub('^54_', '53	', newData, flags=re.M)
+newData = re.sub('^55_', '54	', newData, flags=re.M)
+newData = re.sub('^56_', '55	', newData, flags=re.M)
+newData = re.sub('^57_', '56	', newData, flags=re.M)
+newData = re.sub('^58_', '57	', newData, flags=re.M)
+newData = re.sub('^59_', '58	', newData, flags=re.M)
+newData = re.sub('^60_', '59	', newData, flags=re.M)
+newData = re.sub('^61_', '60	', newData, flags=re.M)
+newData = re.sub('^62_', '61	', newData, flags=re.M)
+newData = re.sub('^63_', '62	', newData, flags=re.M)
+newData = re.sub('^64_', '63	', newData, flags=re.M)
+newData = re.sub('^65_', '64	', newData, flags=re.M)
+newData = re.sub('^66_', '65	', newData, flags=re.M)
+newData = re.sub('^67_', '66	', newData, flags=re.M)
+
+# chapter no
+newData = re.sub('\t...\.([0-9]+?)\.([0-9]+?)\t', r'\t\1\t\2\t', newData)
+newData = re.sub('\t00', '\t', newData)
+newData = re.sub('\t0', '\t', newData)
+
+# Greek unicode characters
+newData = re.sub('ά', 'ά', newData)
+newData = re.sub('ί', 'ί', newData)
+newData = re.sub('έ', 'έ', newData)
+newData = re.sub('ώ', 'ώ', newData)
+newData = re.sub('ή', 'ή', newData)
+newData = re.sub('ύ', 'ύ', newData)
+newData = re.sub('ό', 'ό', newData)
+newData = re.sub('̓͂Α', 'Ἆ', newData)
+newData = re.sub('̓͂Η', 'Ἦ', newData)
+newData = re.sub('̓͂Ω', 'Ὦ', newData)
+newData = re.sub('ί̈', 'ΐ', newData)
+newData = re.sub('ΐ', 'ΐ', newData)
+newData = re.sub('ΰ', 'ΰ', newData)
+newData = re.sub('[᾿ʼ]', '᾽', newData)
+newData = re.sub('ῇ', 'ῇ', newData)
+
+# do NOT add order number
+f = open(outputFile,'w')
+f.write(newData)
+f.close()