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)
Spreadsheets are more fault-prone than other software.
Kulesz & Ostberg (2013)
Your spreadsheets may be disasters in the making.
Caulkins, Morrison, & Weidemann (2006)
Research on spreadsheet errors is substantial, compelling, and unanimous.
Panko (2015)
A significant proportion of spreadsheets have severe quality problems.
Ayalew (2007)
Even obvious, elementary errors in very simple, clearly documented spreadsheets are... difficult to find.
Galletta, et al (1993)
Spreadsheet development must embrace extensive testing in order to be taken seriously as a profession.
Bock (2016)
The software that end users are creating... is riddled with errors.
Burnett & Myers (2014)
Overconfidence is one of the most substantial causes of spreadsheet errors.
Sakal, et al (2015)
Most executives do not really check or verify the accuracy or validity of [their] spreadsheets...
Teo & Tan (1999)
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)
Spreadsheet shortcomings can significantly hamper an organization's business operation.
Reschenhofer & Matthes (2015)
Developing an error-free spreadsheet has been a problem since the beginning of end-user computing.
Mireault (2015)
Spreadsheets are commonly used and commonly flawed.
Caulkins, Morrison, & Weidemann (2008)
The results given by spreadsheets are often just wrong.
Sajaniemi (1998)
Spreadsheet errors have resulted in huge financial losses.
Abraham & Erwig (2007)
A lot of decisions are being made on the basis of some bad numbers.
Ross (1996)
Spreadsheets contain errors at an alarmingly high rate.
Abraham, et al (2005)
Spreadsheets are the most popular live programming environments, but they are also notoriously fault-prone.
Hermans & van der Storm (2015)
Spreadsheets... pose a greater threat to your business than almost anything you can imagine.
Howard (2005)
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)
Despite being staggeringly error prone, spreadsheets are a highly flexible programming environment.
Abreu, et al (2015)
The quality and reliability of spreadsheets is known to be poor.
Bishop & McDaid (2007)
Spreadsheets are extraordinarily and unacceptably prone to error.
Dunn (2010)
Every study, without exception, has found error rates much higher than organizations would wish to tolerate.
Panko (1999)
Errors in spreadsheets... result in incorrect decisions being made and significant losses incurred.
Beaman, et al (2005)
Spreadsheets have a notoriously high number of faults.
Rust, et al (2006)
The issue is not whether there is an error but how many errors there are and how serious they are.
Panko (2007)
People tend to believe their spreadsheets are more accurate than they really are.
Caulkins, Morrison, & Weidemann (2006)
94% of the 88 spreadsheets audited in 7 studies have contained errors.
Panko (2008)
Spreadsheets are notoriously error-prone.
Cunha, et al (2011)
Spreadsheets are often hard, if not impossible, to understand.
Mireault & Gresham (2015)
...few incidents of spreadsheet errors are made public and these are usually not revealed by choice.
Kruck & Sheetz (2001)
Spreadsheets are dangerous to their authors and others.
Durusau & Hunting (2015)
It is now widely accepted that errors in spreadsheets are both common and potentially dangerous.
Nixon & O'Hara (2010)
Every study that has looked for errors has found them... in considerable abundance.
Panko & Halverson (1996)
The untested spreadsheet is as dangerous and untrustworthy as an untested program.
Price (2006)
Spreadsheets can be viewed as a highly flexible programming environment for end users.
Abreu, et al (2015)
Spreadsheet errors... a great, often unrecognised, risk to corporate decision making & financial integrity.
Chadwick (2002)
Spreadsheet errors are pervasive, stubborn, ubiquitous and complex.
Irons (2003)
Spreadsheet errors are still the rule rather than the exception.
Nixon & O'Hara (2010)
Spreadsheets are alarmingly error-prone to write.
Paine (2001)
Spreadsheets are easy to use and very hard to check.
Chen & Chan (2000)
Despite overwhelming and unanimous evidence... companies have continued to ignore spreadsheet error risks.
Panko (2014)
Studies have shown that there is a high incidence of errors in spreadsheets.
Csernoch & Biro (2013)
Errors in spreadsheets are as ubiquitous as spreadsheets themselves.
Colbenz (2005)
Untested spreadsheets are riddled with errors.
Miller (2005)

Spreadsheet bibliography

Title Microcomputer spreadsheets: Their uses and abuses
Authors Richard Creeth
Year 1985
Type Article
Publication Journal of Accountancy
Series Volume 159, number 6, June, pages 90-93
Abstract

In only a few brief years spreadsheet software has become a popular accounting tool. But this rapid acceptance has led to unexpected hazards when the software is used inappropriately.

This article describes the benefits of computerized spreadsheets - and how to avoid some common dangers resulting from their misuse.

Full version Not available
Sample
Spreadsheet dangers: Improper usage

Proper training for all users remains essential.

In the hands of an inexperienced user, 1-2-3 could be likened to a chainsaw in the hands of a child; it is a tremendously powerful tool if used correctly, but the consequences can be drastic if it gets out of control.

If a novice user receives proper instruction and sticks to the basics of spreadsheet construction, however, the dangers of costly foul-ups will be minimised.

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