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Tables with long numbers are truncated when exported to excel #28551
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The issue with long numbers being truncated when exported to Excel from Superset is due to Excel's limitation of handling a maximum precision of 15 digits for numbers. This results in numbers longer than 15 digits being truncated or rounded. To prevent this, you can modify the Here's a modification you can apply: import io
from typing import Any
import pandas as pd
def df_to_excel(df: pd.DataFrame, **kwargs: Any) -> Any:
output = io.BytesIO()
# Convert long numbers to strings to avoid truncation
for column in df.columns:
if df[column].dtype == 'int64': # Check if the column is of int64 type
df[column] = df[column].astype(str)
# Handle timezones
for column in df.select_dtypes(include=["datetimetz"]).columns:
df[column] = df[column].astype(str)
with pd.ExcelWriter(output, engine="xlsxwriter") as writer:
df.to_excel(writer, **kwargs)
return output.getvalue() This code checks each column's data type and converts
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@jose-vines-toteat let us know if you want to open a PR to solve the problem. We'd love to get feedback on Dosu's suggestions here, since if it leads to a fix, that's pretty amazing. |
Hi, sorry it took me so long to get to this. I'll open a PR to solve this following Dosu's suggestion. |
Bug description
When downloading a table with long numbers with the excel options, these are truncated by replacing the last number with a 0. For example, 1100108628127863 would appear as 1100108628127860. This does not happen when exporting to CSV.
How to reproduce the bug
Create a table where a dimension is some large number (15-16 digits) and then download as excel.
Screenshots/recordings
This is an extract of the table in my dashboard
This is what it looks like in excel
Superset version
3.1.3
Python version
3.9
Node version
16
Browser
Chrome
Additional context
No response
Checklist
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