Open large CSV files instantly

CSV Opener allows you to open and modify CSV files of any size. From small CSV files to huge files that can't be opened in excel or other tools

Screenshot of App inside a laptop


CSV Opener comes with a lot of handy features

I had a hard time opening CSV files in Excel, but CSV opener worked flawlessly every time!

John K, Seattle, WA

CSV Opener helped me to open big CSV files on my older laptop.

Lynda B, Boston, MI

We had a tab separated file with more than 30 million rows and CSV opener worked extremely well for us.

Rashid J, Kelowna, Canada

Pricing and Licensing

We offer two-week free version and a pro version


  • Open CSV file of any size
  • Supports most CSV configurations and delimeters
  • Free for 14 days
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$29 /license
  • Open CSV files of any size
  • Supports most CSV configurations and delimiters
  • Priority Support
  • Works with Windows 7 or newer
  • Free updates for 365 days

Frequently Asked Questions

Can't find an answer? Don't hesitate to reach out!.

What kind of files are supported?

CSV Opener supports .csv and .txt files with valid formatting. (Delimited with comma, tab, semicolon, etc.)

Will it work on an older computer?

Yes, it works with any amount of memory available on your computer. You can also modify settings to limit the amount of memory that CSV Opener should use. The more memory you have, the faster it works, but, in general, it works extremely fast on most computers.

Do you provide enterprise pricing?

Yes, if you have >25 users, please contact us and we will provide you with a price list.

What operating systems are supported?

CSV Opener works with Windows 7,8,10, Windows Server 2003 and up.