Quattro Pro is a spreadsheet

Spreadsheet

A spreadsheet is a computer application that simulates a paper accounting worksheet. It displays multiple cells usually in a two-dimensional matrix or grid consisting of rows and columns. Each cell contains alphanumeric text, numeric values or formulas...

 program developed by Borland

Borland

Borland Software Corporation is a software company first headquartered in Scotts Valley, California, Cupertino, California and finally Austin, Texas. It is now a Micro Focus subsidiary. It was founded in 1983 by Niels Jensen, Ole Henriksen, Mogens Glad and Philippe Kahn.-The 1980s:...

 and now sold by Corel

Corel

Corel Corporation from the abbreviation is a computer software company headquartered in Ottawa, Ontario, that specializes in graphics processing, similar to Adobe Systems...

, most often as part of Corel's WordPerfect Office

WordPerfect Office

WordPerfect Office is an office suite developed by Corel Corporation. As of March 2010, the latest version is WordPerfect Office X5 , which is available in three editions: Home & Student, Standard and Professional....

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Historically, Quattro Pro used keyboard commands similar to Lotus 1-2-3

Lotus 1-2-3

Lotus 1-2-3 is a spreadsheet program from Lotus Software . It was the IBM PC's first "killer application"; its huge popularity in the mid-1980s contributed significantly to the success of the IBM PC in the corporate environment.-Beginnings:...

. It is commonly said to have been the first program to use tabbed sheets. Actually, Boeing Calc had tabbed sheets earlier. It currently runs under the Windows operating system. Quattro Pro avoided the 65,536 row by 256 column spreadsheet limitations inherent to pre-2007 versions of Microsoft Excel by allowing a maximum worksheet size of one million rows by 18,276 columns.