Project: xlsxwriter

Language python
OSS-Fuzz project link
Project repository link
Build status: Fuzzers failing: Build log
Build status: Code coverage succeeding: Build log
Build status: Fuzz Introspector succeeding: Build log
Fuzzer count 1
Lines of code 4001
Lines covered 167
Code coverage 4.17%
Code coverage report Report link
Static reachability 0.00%
Fuzz Introspector report Report link (from 2025-05-30)
Fuzzer Code coverage (lines) Latest Report Comments
xlsx_fuzzer 0% (avg: 0.0%, max: 0%) 2025-05-30

Historical Progression

Per Fuzzer Progression

Functions of interest to fuzz

This section outlines functions that may be of interest to fuzz. They are based on ranking functions that have a lot of complexity but currently exhibit low code coverage. The complexity is calculated based on the function itself as well as the functions called by the given function, i.e. the tree of code that the function triggers.


This is only a minor amount of introspection information available for this project. Please consult the Fuzz Introspector report for more information, e.g. the introspection table of all functions in the target project available here.

Function name Function source file Accumulated cyclomatic complexity Code coverage
xlsxwriter.workbook.Workbook.__exit__ xlsxwriter.workbook 1426 0.0%
xlsxwriter.workbook.Workbook.close xlsxwriter.workbook 1423 0.0%
xlsxwriter.workbook.Workbook._store_workbook xlsxwriter.workbook 1416 0.0%
xlsxwriter.packager.Packager._create_package xlsxwriter.packager 1181 0.0%
xlsxwriter.chart.Chart._write_plot_area xlsxwriter.chart 772 0.0%
xlsxwriter.chart.Chart._assemble_xml_file xlsxwriter.chart 717 0.0%
xlsxwriter.worksheet.convert_cell_args.cell_wrapper xlsxwriter.worksheet 687 0.0%
xlsxwriter.chart.Chart._write_chart xlsxwriter.chart 681 0.0%
xlsxwriter.worksheet.Worksheet._assemble_xml_file xlsxwriter.worksheet 650 0.0%
xlsxwriter.chart_scatter.ChartScatter._write_plot_area xlsxwriter.chart_scatter 608 0.0%