Quick Start: Preview CSV Files
- Open the CSV Table Preview tool on HeronTool.
- Click the upload button and select your .csv file (large files supported).
- The tool automatically parses and displays it as a table; you can scroll to view the first 100 rows to check data formatting.
- To filter or sort, use the search box and column sorting above the table to quickly locate key data.
Convert CSV Formats
- In HeronTool's CSV Converter, upload your CSV file.
- Choose target format: JSON, Excel (.xlsx), or SQL script.
- Customize delimiter (comma, semicolon, tab) and encoding (UTF-8, GBK) for compatibility.
- Click "Convert" and download the result; everything happens locally in your browser for privacy.
FAQ
Q: CSV file too large, preview lags?
A: The CSV Table Preview tool loads only the first 1000 rows by default; you can also manually set a row limit to avoid browser crashes.
Q: Chinese characters garbled after conversion?
A: Check the source file encoding, select the correct one (e.g., UTF-8) before converting, or try the "auto-detect" feature.
Q: How to preserve leading zeros in CSV?
A: When converting to Excel, choose "Text" column type, or use HeronTool's CSV Editor to adjust column formats manually.
