Connect a CSV file to Claude

Pasting a spreadsheet into the chat works once, then you're re-pasting it every time you have a new question. Upload the CSV to Synquil instead and Claude can query the full dataset whenever you ask.

Get started freeSee how it works →
CSV
Synquil
Synced data layer
Claude

How it works

  1. Upload your CSV. No account or OAuth needed on the source side — just drag the file in.
  2. Synquil structures the data. Columns are inferred into a queryable schema, the same way a connected data source would be.
  3. Add Synquil as a connector in Claude. Paste your MCP URL into Claude's connector settings and authorize once.
  4. Query the full file in plain English. Claude filters, counts, and joins rows across the entire dataset, not just what fits in a chat message.

Example questions you can ask Claude

“Summarize this dataset by category.”
“Which rows have a missing value in the email column?”
“What is the total in the revenue column, grouped by region?”
“Find duplicate rows by customer email.”

Where this is most useful

One-off exports and datasets that don't live in a connected tool get the most value here — useful on its own, and just as useful as a quick first step before connecting a live source later.

Stop re-pasting the same spreadsheet into every chat.

Upload a CSV free