Uploading Data Analyst+
You can bring your own data into Nucleus by uploading files. Nucleus detects the schema automatically and makes the data queryable alongside your other sources.
Two Ways to Upload
From the Data Page
- Click the Add Data button (or the + icon in the source tree).
- Drag and drop your file, or click to browse.
- Nucleus scans the file and detects columns, data types, and purpose.
- Review the detected schema and confirm.
- The data appears as a new table under your user-created sources.
From AI Chat
Click the + icon in the chat input to attach a file, then tell the AI what to do with it:
“Upload this CSV and show me a summary of the data”
The AI handles the import and can immediately start analyzing it.
Supported Formats
- CSV (.csv)
- Excel (.xlsx, .xls)
What Happens After Upload
- Schema detection — Columns and types are inferred automatically. Date columns, numeric fields, and text are identified without manual configuration.
- Secure storage — Files are stored securely and accessible only within your organization.
- Source organization — Uploaded data is organized into source sections in the Data sidebar, just like integration data.
Uploading a file with the same name as an existing table will create a new version, not overwrite the original.
What’s Next
- Data Sources — See your uploaded data alongside other sources.
- Table Preview — Inspect the uploaded table.