How to open a large CSV file too big for Excel

Опубликовано: 11 Июль 2026
на канале: Row Zero
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Row Zero is a spreadsheet for big data that easily opens files too big for Excel. Try for free at https://rowzero.io

In this video we open a big CSV file with 11 million rows of data in seconds with a simple file import. Row Zero easily opens millions of rows on a free plan and Enterprise plans can support billion row datasets (1000x the Excel limit of 1,048,576 rows).

You can open large CSV files via file import, URL, or directly from an Amazon S3 bucket. Once you open a big CSV in your spreadsheet, Row Zero works like Excel and Google Sheets. You can filter, sort, pivot, chart, and write Excel-compatible formulas (COUNTIF, XLOOKUP, etc.) to analyze your CSV file. Whenever you have an update file, you can append your new CSV file to your original dataset or overwrite it with a new file and everything in your spreadsheet automatically updates.

If you need to open a big CSV file more than 1 million rows, Row Zero is a great Excel alternative for big data.

In addition to big CSV files, Row Zero also opens large file formats like parquet, JSONL, .txt, etc. and can also automatically unzip and open CSV.gz files.

Learn more at https://rowzero.com/blog/open-big-csv

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