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

Documenting Excel projects

9 January 2018

Excel projects of any significance are very often complicated. Documenting such projects is crucial for auditing and maintainability.

Fortunately, Microsoft provides several options for documenting Excel projects:

  • Workbook name and path.
  • Workbook Properties.
  • Model structure.
  • Titles.
  • Value labels.
  • Names and Structured References.
  • Cell Comments.
  • Text boxes.
  • Data Validation.
  • Hyperlinks.
  • Documentation worksheets.
  • External documentation.

[Note: The article also suggests using the N() function to include documentation in a formula. This is a risky practice that may result in errors. i advises not to use the N() function for documentation.]

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