Untested spreadsheets are riddled with errors.
Miller (2005)
Spreadsheets are notoriously error-prone.
Cunha, et al (2011)
Spreadsheets are easy to use and very hard to check.
Chen & Chan (2000)
Every study that has looked for errors has found them... in considerable abundance.
Panko & Halverson (1996)
Spreadsheets are alarmingly error-prone to write.
Paine (2001)
Developing an error-free spreadsheet has been a problem since the beginning of end-user computing.
Mireault (2015)
Never assume a spreadsheet is right, even your own.
Raffensperger (2001)
It is now widely accepted that errors in spreadsheets are both common and potentially dangerous.
Nixon & O'Hara (2010)
Spreadsheet errors have resulted in huge financial losses.
Abraham & Erwig (2007)
Spreadsheets are dangerous to their authors and others.
Durusau & Hunting (2015)
The software that end users are creating... is riddled with errors.
Burnett & Myers (2014)
The issue is not whether there is an error but how many errors there are and how serious they are.
Panko (2007)
Spreadsheets contain errors at an alarmingly high rate.
Abraham, et al (2005)
Even obvious, elementary errors in very simple, clearly documented spreadsheets are... difficult to find.
Galletta, et al (1993)
Most executives do not really check or verify the accuracy or validity of [their] spreadsheets...
Teo & Tan (1999)
People tend to believe their spreadsheets are more accurate than they really are.
Caulkins, Morrison, & Weidemann (2006)
The results given by spreadsheets are often just wrong.
Sajaniemi (1998)
1% of all formulas in operational spreadsheets are in error.
Powell, Baker, & Lawson (2009)
Spreadsheet errors are pervasive, stubborn, ubiquitous and complex.
Irons (2003)
Errors in spreadsheets are as ubiquitous as spreadsheets themselves.
Colbenz (2005)
Studies have shown that there is a high incidence of errors in spreadsheets.
Csernoch & Biro (2013)
The untested spreadsheet is as dangerous and untrustworthy as an untested program.
Price (2006)
Spreadsheets are extraordinarily and unacceptably prone to error.
Dunn (2010)
Spreadsheets are the most popular live programming environments, but they are also notoriously fault-prone.
Hermans & van der Storm (2015)
Spreadsheets are commonly used and commonly flawed.
Caulkins, Morrison, & Weidemann (2008)
The quality and reliability of spreadsheets is known to be poor.
Bishop & McDaid (2007)
Errors in spreadsheets... result in incorrect decisions being made and significant losses incurred.
Beaman, et al (2005)
Most large spreadsheets have dozens or even hundreds of errors.
Panko & Ordway (2005)
Research on spreadsheet errors is substantial, compelling, and unanimous.
Panko (2015)
Your spreadsheets may be disasters in the making.
Caulkins, Morrison, & Weidemann (2006)
Spreadsheets can be viewed as a highly flexible programming environment for end users.
Abreu, et al (2015)
A significant proportion of spreadsheets have severe quality problems.
Ayalew (2007)
Spreadsheet errors... a great, often unrecognised, risk to corporate decision making & financial integrity.
Chadwick (2002)
Spreadsheets... pose a greater threat to your business than almost anything you can imagine.
Howard (2005)
Every study, without exception, has found error rates much higher than organizations would wish to tolerate.
Panko (1999)
Spreadsheets are often hard, if not impossible, to understand.
Mireault & Gresham (2015)
Programmers exhibit unwarranted confidence in the correctness of their spreadsheets.
Krishna, et al (2001)
Spreadsheets are more fault-prone than other software.
Kulesz & Ostberg (2013)
Despite overwhelming and unanimous evidence... companies have continued to ignore spreadsheet error risks.
Panko (2014)
Spreadsheets have a notoriously high number of faults.
Rust, et al (2006)
Despite being staggeringly error prone, spreadsheets are a highly flexible programming environment.
Abreu, et al (2015)
Spreadsheet errors are still the rule rather than the exception.
Nixon & O'Hara (2010)
Spreadsheet shortcomings can significantly hamper an organization's business operation.
Reschenhofer & Matthes (2015)
Spreadsheet development must embrace extensive testing in order to be taken seriously as a profession.
Bock (2016)
A lot of decisions are being made on the basis of some bad numbers.
Ross (1996)
Overconfidence is one of the most substantial causes of spreadsheet errors.
Sakal, et al (2015)
...few incidents of spreadsheet errors are made public and these are usually not revealed by choice.
Kruck & Sheetz (2001)
60% of large companies feel 'Spreadsheet Hell' describes their reliance on spreadsheets.
Murphy (2007)
It is irrational to expect large error-free spreadsheets.
Panko (2013)
94% of the 88 spreadsheets audited in 7 studies have contained errors.
Panko (2008)

Spreadsheet bibliography

Title Ensuring spreadsheet integrity with Model Master
Authors Jocelyn Paine
Year 2001
Type Proceedings
Publication EuSpRIG
Series  
Abstract

We have developed the Model Master (MM) language for describing spreadsheets, and tools for converting MM programs to and from spreadsheets.

The MM decompiler translates a spreadsheet into an MM program which gives a concise summary of its calculations, layout, and styling. This is valuable when trying to understand spreadsheets one has not seen before, and when checking for errors.

The MM compiler goes the other way, translating an MM program into a spreadsheet. This makes possible a new style of development, in which spreadsheets are generated from textual specifications. This can reduce error rates compared to working directly with the raw spreadsheet, and gives important facilities for code reuse.

MM programs also offer advantages over Excel files for the interchange of spreadsheets.

Full version Available
Sample
Model Master example
Model Master example

Model Master (MM) "decompiles" spreadsheets, generating concise specifications of their calculations.

The specification lists the variables or "attributes" represented by the cells, and the equations relating them.

It gives an alternative view of the spreadsheet, which we believe to be valuable when checking for errors and when trying to understand spreadsheets written by other people.

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