Upload data

Upload CSV, Excel, JSON, or Parquet files to your dataset in the Polyteia Platform.

To manually upload data, navigate to an empty dataset and either drag your file into it or click on the upload section. Accepted formats include CSV, Excel, JSON, and Parquet. Once uploaded, the file is stored, analyzed, and its schema is automatically generated.

Manually uploading a file

1. Navigate to your dataset: Home → Workspace → Solution → Datasets

2. Create a new dataset or upload to an existing dataset.

3. Find the upload area in the Overview tab or click on the ··· menu for an existing dataset and select Upload data.

4. Upload your data by either:

   • Dragging a file into the upload field

   • Or clicking on Upload data and selecting a file from your computer

Uploading data to an existing dataset overwrites the existing data. If you still need the data, create a new dataset for your new data.

Maximum file size

The maximum file size per uploaded file is 100 MB. For larger files, please contact us directly here.

Supported file formats

Format	File Extensions	Notes
CSV	.csv	Standard comma-separated data
Excel	.xls, .xlsx	Only the first worksheet is processed
JSON	.json	Must be properly structured
Parquet	.parquet	Optimized for large datasets

After upload

• The file is stored in your connected warehouse (e.g., s3)

• You'll see a success message when the analysis is complete.

• The data table appears directly in the editor.

• The schema (columns, data types) is automatically detected.

You can adjust the schema later under the Details tab.

Tips for clean uploads

• Make sure the first row contains headers.

• Use consistent data types in each column.

• Avoid empty rows or merged cells in Excel files.

• For JSON: Use an array of objects (e.g., [{"key": "value"}, ...])