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

10 things you should never do in Excel

9 October 2017

Mastering Excel takes some experience and patience, but it's easy to make mistakes even if you've been using it for a long time. Sometimes, choices seem like a brilliant idea—until they're not, and the resulting problems are hard to troubleshoot.

In this article, I share 10 ways to avoid actions that seem good... at the time:

  • Rely on multiple links.
  • Destroy data.
  • Rely on default settings.
  • Ignore Table objects.
  • Use Excel as a database or Word processor.
  • Forget to protect your work.
  • Leave blanks.
  • Use numbers as column headings.
  • Allow error values.
  • Sluff off backups.
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