sheet_name : Specify the sheet to convert (integer index or string name). Use None to read all sheets as a dictionary of DataFrames.
import csv from python_calamine import CalamineWorkbook def convert_xlsx_to_csv_calamine(xlsx_path, csv_path): # Open workbook via Rust engine workbook = CalamineWorkbook.from_path(xlsx_path) # Get the first sheet name sheet_name = workbook.sheet_names[0] rows = workbook.get_sheet_by_name(sheet_name) # Stream rows directly to CSV with open(csv_path, 'w', newline='', encoding='utf-8') as csv_file: writer = csv.writer(csv_file) writer.writerows(rows) # Example usage convert_xlsx_to_csv_calamine('huge_data.xlsx', 'huge_output.csv') Use code with caution. 4. Converting Multi-Sheet Workbooks convert xlsx to csv python
encoding='utf-8' : Ensures proper handling of special characters and symbols. 2. Using OpenPyXL (Best for Preserving Layouts and Formats) sheet_name : Specify the sheet to convert (integer