Python script for extracting all unique values from each tab of a spreadsheet.
Logs results in Output.csv in the same directory as .py file.
import pandas as pd import xlrd from tkinter import Tk from tkinter import filedialog def UniqueValuesFromSpreadsheet(WorkbookPath,sheet_name): df=pd.DataFrame(pd.read_excel(WorkbookPath,sheetname=sheet_name, header=None,index_col=False)) df2=pd.unique(df.values.ravel()) return df2 Tk().withdraw() filename=filedialog.askopenfilename() SheetNames=xlrd.open_workbook(filename).sheet_names() NumSheets=len(SheetNames) Results={} for i in range(0,NumSheets): Results[SheetNames[i]] = UniqueValuesFromSpreadsheet(filename,i) print(SheetNames[i], UniqueValuesFromSpreadsheet(filename,i)) with open('Output.csv', 'w') as f: f.write('{0},{1}\n'.format("Sheet Name", "Value")) for key in Results: for i in range(0,len(Results[key])): if str(Results[key][i]) != 'nan': f.write('{0},{1}\n'.format(key, Results[key][i])) print(key, Results[key][i])