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

Spreadsheets are extraordinarily and unacceptably prone to error.

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

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

Spreadsheets are easy to use and very hard to check.

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

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

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

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

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

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

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

A significant proportion of spreadsheets have severe quality problems.

Your spreadsheets may be disasters in the making.

Spreadsheet errors have resulted in huge financial losses.

Untested spreadsheets are riddled with errors.

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

Most large spreadsheets have dozens or even hundreds of errors.

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

Spreadsheets are more fault-prone than other software.

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

Never assume a spreadsheet is right, even your own.

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

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

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

Spreadsheets contain errors at an alarmingly high rate.

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

It is irrational to expect large error-free spreadsheets.

The results given by spreadsheets are often just wrong.

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

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

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

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

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

Spreadsheet errors are pervasive, stubborn, ubiquitous and complex.

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

Spreadsheets are dangerous to their authors and others.

Spreadsheet errors are still the rule rather than the exception.

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

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

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

Spreadsheets are notoriously error-prone.

Spreadsheets have a notoriously high number of faults.

Programmers exhibit unwarranted confidence in the correctness of their spreadsheets.

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

Spreadsheets are alarmingly error-prone to write.

Spreadsheets are commonly used and commonly flawed.

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

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

Errors in spreadsheets are as ubiquitous as spreadsheets themselves.