Keikai Alternatives

Keikai is described as 'is the only Web Spreadsheet designed and architected for big data — and is the fastest web spreadsheet regardless of size. Other advanced features include embeddable in your Web Apps, providing true Excel experiences and more' and is an app in the Office & Productivity category. There are more than 25 alternatives to Keikai for a variety of platforms, including Windows, Mac, Linux, the Web and iPad. The best alternative is LibreOffice, which is both free and Open Source. Other great apps like Keikai are Microsoft Office Suite (Paid), LibreOffice - Calc (Free, Open Source), Apache OpenOffice (Free, Open Source) and Microsoft Office Excel (Paid).