How to write Pandas bool column as True/False instead of 1/0 to XLSX

Problem:

When writing a pandas XLSX, bool-type columns are shown are 0 for False or 1 for True.

df = pd.DataFrame([
    {"a": True},
    {"a": False},
    {"a": True},
    {"a": False},
    {"a": False},
])

with pd.ExcelWriter("out.xlsx", engine="xlsxwriter") as writer:
    df.to_excel(writer)

Solution

Map the column to a string column with your desired value before exporting:

df["a"] = df["a"].map({True: "True", False: "False"})

Full example code:

df = pd.DataFrame([
    {"a": True},
    {"a": False},
    {"a": True},
    {"a": False},
    {"a": False},
])
df["a"] = df["a"].map({True: "True", False: "False"})
with pd.ExcelWriter("out.xlsx", engine="xlsxwriter") as writer:
    df.to_excel(writer)