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+#! python3
+
+# Chapter 14 Practice Excel to CSV Converter
+# Converts all Excel file sheets in the current directory to CSV files
+
+import os
+import csv
+import openpyxl
+
+for excelFile in os.listdir('.'):
+    if excelFile.endswith('.xlsx'):
+        wb = openpyxl.load_workbook(excelFile)
+        for sheetName in wb.get_sheet_names():
+            sheet = wb.get_sheet_by_name(sheetName)
+            csvFileName = open(excelFile + sheetName + '.csv', 'w', newline='')
+            csvFile = csv.writer(csvFileName)
+
+            for rowNum in range(1, sheet.get_highest_row() + 1):
+                rowData = []
+                for colNum in range(1, sheet.get_highest_column() + 1):
+                    cellData = sheet.cell(row=rowNum, column=colNum).value
+                    rowData.append(cellData)
+
+                csvFile.writerow(rowData)
+
+            csvFileName.close()