Supported Formats
ExploreMyData supports the most common tabular data formats.
| Format | Extensions | Notes |
|---|---|---|
| CSV | .csv | Comma-separated. Auto-detects delimiter, encoding, and headers. |
| TSV | .tsv, .tab | Tab-separated. Treated as CSV with tab delimiter. |
| Excel | .xlsx, .xls | Reads the first sheet. Parsed via the xlsx library. |
| Parquet | .parquet | Columnar format. Native DuckDB support - fastest to load. |
| JSON | .json | Array of objects or newline-delimited JSON (NDJSON). |
File Size
Files up to ~100 MB work well in most browsers. Larger files may work but will use more memory. Parquet files are the most efficient format for large datasets.
Encoding
DuckDB auto-detects file encoding. If you see garbled characters, try saving your file as UTF-8 before uploading.