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

Spreadsheet bibliography

Title Only a matter of time before the spreadsheets hit the fan
Authors Robert Miller
Year 2005
Type Newspaper article
Publication The Telegraph
Series 30 June 2005
Abstract Inaccurate financial information is widespread and is putting businesses at risk.
Full version Available
Sample
Spreadsheets are ubiquitous and almost certainty contain errors

Even the simplest spreadsheet calculations in a company are not tested independently for accuracy and the probability of material error is way over 90pc.

"It's very worrying. Untested spreadsheets are riddled with errors very often because the incorrect formula has been entered in the first place."

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