Overconfidence is one of the most substantial causes of spreadsheet errors.

Spreadsheets are notoriously error-prone.

Never assume a spreadsheet is right, even your own.

Most executives do not really check or verify the accuracy or validity of [their] spreadsheets...

Spreadsheet errors are pervasive, stubborn, ubiquitous and complex.

Spreadsheets contain errors at an alarmingly high rate.

Spreadsheet errors have resulted in huge financial losses.

Despite overwhelming and unanimous evidence... companies have continued to ignore spreadsheet error risks.

It is irrational to expect large error-free spreadsheets.

Spreadsheet shortcomings can significantly hamper an organization's business operation.

Programmers exhibit unwarranted confidence in the correctness of their spreadsheets.

Spreadsheets are the most popular live programming environments, but they are also notoriously fault-prone.

Spreadsheets can be viewed as a highly flexible programming environment for end users.

Studies have shown that there is a high incidence of errors in spreadsheets.

The quality and reliability of spreadsheets is known to be poor.

Untested spreadsheets are riddled with errors.

60% of large companies feel 'Spreadsheet Hell' describes their reliance on spreadsheets.

Errors in spreadsheets are as ubiquitous as spreadsheets themselves.

Most large spreadsheets have dozens or even hundreds of errors.

Spreadsheets are more fault-prone than other software.

A lot of decisions are being made on the basis of some bad numbers.

Developing an error-free spreadsheet has been a problem since the beginning of end-user computing.

Spreadsheets are dangerous to their authors and others.

It is now widely accepted that errors in spreadsheets are both common and potentially dangerous.

Spreadsheets are commonly used and commonly flawed.

People tend to believe their spreadsheets are more accurate than they really are.

Spreadsheets are extraordinarily and unacceptably prone to error.

The results given by spreadsheets are often just wrong.

Spreadsheet development must embrace extensive testing in order to be taken seriously as a profession.

The issue is not whether there is an error but how many errors there are and how serious they are.

Even obvious, elementary errors in very simple, clearly documented spreadsheets are... difficult to find.

Spreadsheets are alarmingly error-prone to write.

Spreadsheet errors... a great, often unrecognised, risk to corporate decision making & financial integrity.

1% of all formulas in operational spreadsheets are in error.

...few incidents of spreadsheet errors are made public and these are usually not revealed by choice.

Despite being staggeringly error prone, spreadsheets are a highly flexible programming environment.

Research on spreadsheet errors is substantial, compelling, and unanimous.

The untested spreadsheet is as dangerous and untrustworthy as an untested program.

Errors in spreadsheets... result in incorrect decisions being made and significant losses incurred.

Spreadsheets... pose a greater threat to your business than almost anything you can imagine.

Spreadsheet errors are still the rule rather than the exception.

The software that end users are creating... is riddled with errors.

Spreadsheets are easy to use and very hard to check.

Your spreadsheets may be disasters in the making.

Every study that has looked for errors has found them... in considerable abundance.

Every study, without exception, has found error rates much higher than organizations would wish to tolerate.

A significant proportion of spreadsheets have severe quality problems.

Spreadsheets have a notoriously high number of faults.

Spreadsheets are often hard, if not impossible, to understand.

94% of the 88 spreadsheets audited in 7 studies have contained errors.