Instantly open large CSV files online, in a browser-based spreadsheet. No download required.

Share your results with others, collaborate in Gigasheet, or export and download CSV files to your computer. Business users can embed sheets or connect directly to databases and data warehouses.
Hospital standard charge files are published as CSV, and they are why a lot of people end up on this page. One hospital file can run to millions of rows with a column for every payer and plan, which is past what Excel will open and unreadable in a plain text viewer. Gigasheet opens it, then lets you filter to the billing codes and payers you care about and export only that slice.
Payer Transparency in Coverage files are JSON rather than CSV and are larger again. For those, use MRF Viewer, which flattens the nested structure to the rate level, or read how to open and view MRFs first.
Gigasheet's Online CSV Viewer offers a free and convenient way to view CSV files right in your browser. No software download is required and there's no cost to use the service.
Gigasheet operates at cloud scale, meaning you can easily view CSV files too large for Excel or Google Sheets. Need to view even bigger CSV files? Upgrade to Premium to view multi-gigabyte CSV files online.
Gigasheet uses a combination of encryption at rest and in transit, as well as industry leading safeguards to protect our all user data. We don't share or sell any files you load into Gigasheet.