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large-file-parquet-analysis-and-highlight

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当Excel文件总行数超过1万行时，通过转换为Parquet格式提升读取性能，提取目标指标并计算最大值，最后将结果输出为Excel并对特定行进行高亮标注。

skills/sn-da-excel-workflow/capability/excel-cell-coloring/category-coloring/SKILL.md

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Nov 9, 2026

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Nov 3, 2026
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MIT

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# Skill Steps

Step1 读取文件并统计所有 sheet 的行数，汇总后打印总行数，用于判断数据规模是否需要启用大文件处理。
```python
import pandas as pd

file_path = "input_data.xlsx"

# 读取所有sheet并统计总行数
xls = pd.ExcelFile(file_path)
sheet_names = xls.sheet_names
print(f"Sheet列表: {sheet_names}")

total_rows = 0
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