Bonum Certa Men Certa

Microsoft's Excel Fails at Maths Again, New Warnings About OOXML Defects

GNOME CalcA couple of nice items, one of which is a blog post and another one an article, have just been published. Together they illustrate both the 'bugginess' of OOXML and the office suite around which it's actually modeled.

Let's start with Rob Weir's latest post, It sheds light on the huge amount of defects already found in OOXML. They remain largely unresolved while Microsoft rushes the process, breaking and bending the rules, as usual.

DIS 29500, Office Open XML, was submitted for Fast Track review by Ecma as 6,045 page specification. (After the BRM, it is now longer, maybe 7,500 pages or so. We don't know for sure, since the post-BRM text is not yet available for inspection.) Based on the original 6,045 page length, a 5-month review by JTC1 NB's lead to 48 defect reports by NB's, reporting a total of 3,522 defects. Ecma responded to these defect reports with 1,027 proposals, which the recent BRM, mainly through the actions of one big overnight ballot, approved.


In case you believe that Microsoft's OOXML is enough provided that you use Microsoft Office, question your beliefs again. For the third time in just months, a bug is find in the calculations done by Microsoft Excel. Watch in disbelief the outcome of poor quality control.

A bug in this week's MS08-014 patch causes Excel to return zeroes instead of the correct number when certain types of macros are run within the program.


Depending on the domain in which Excel gets used, this could be critical. In some cases, such bugs can lead to death.

It was only days ago that we last identified a similar bug. Below we append several more, some of which may have expired for copyrights reasons for which only/mainly Associated Press is renowned.

Other incidents and reports of interest:

[1] Trouble In Microsoft World Over Calculator

The calculator post seems to be a reaction to a MS KnowledgeBase article titled Incorrect Calculator Results When You Use the Percent Key which implies the percent function screws up your results when you use it along with + or – in any combination. Way to go Microsoft!


[2] Microsoft Excel fails math test

Microsoft Corp.'s Excel 2007 spreadsheet program is going to have to relearn part of its multiplication table.


[3] Microsoft: Excel Bug Doesn't Add Up

If you've been depending on your Microsoft Excel software to do your number crunching for you, you might want to grab a calculator and review your spreadsheets before you send the document out the door. That's because the latest version of Excel is housing bugs that are dead set on ruining your reports.


[4] Mathematically Incorrect

So when it comes to comparing MSOOXML and ODF v1.0 on the basis of the inclusion of "Formula Definitions", it becomes clear that the anti-ODF folk have not much to shout about. In fact MSOOXML's "Formula Definition" is deficient and inaccurate.


[5] The Formula for Failure

As I've shown, in the rush to write a 6,000 page standard in less than a year, Ecma dropped the ball. OOXML's spreadsheet formula is worse than missing. It has incorrect formulas that, if implemented according to the standard may cause loss of life, property and capital. This standard is seriously messed up. And shame on all those who praised and continue to praise the OOXML formula specification without actually reading it.


If you are aware of more such incidents and error, please shout out and share the knowledge. ⬆

Comments

Recent Techrights' Posts

IRC is for Communities, Social Control Networks Are for Broligarchs (by Broligarchs)
Unlike Reddit, it's not a company
Intercontinental Brigading - Part XXXXVI - Attempts to Kill Critics
"Epstein contacted Cambridge academics about research funding"
NVIDIA Down About 30% in 5 Weeks, When Does the Media Call It "Bubble" Rather Than Frame It as Sex Scandal?
they'll find a way to blame "China"
 
Links 11/11/2026: Skydance Games and Boeing Hit By Layoffs, "Time Out for Timeouts"
Links for the day
JavaScript is the Problem, Not the Answer
Making the Web better is about making things better, not slapping more JavaScript 'walls' at it
Intercontinental Brigading - Part XXXXVII - "Making a False Complaint to Police is a Crime." (British Cops Aren't American Mercenaries)
"In the United Kingdom, the Foreign Enlistment Act 1819 and the Foreign Enlistment Act 1870 make it unlawful for British subjects to join the armed forces of any state warring with another state at peace with Britain."
The Label 'Anti-AI'
They make it sound like opposing plagiarism or cheating is an act of intolerance or hatred
Intolerance and Violence
Intolerance in the software world is not a new problem
António Campinos Hiding From Staff Amid Strikes, Won't Participate in Dialogue
They voted to continue striking until Christmas
Silent Layoffs at IBM (Rolling Layoffs), Now Curbs on H1B (Mostly Indian Applicants)
Little will change at IBM except the gravity (global distribution) of its workforce will go east
Links 11/11/2026: Moving from Proton to Posteo and "Floating in Space"
Links for the day
Over at Tux Machines...
GNU/Linux news for the past day
IRC Proceedings: Tuesday, November 10, 2026
IRC logs for Tuesday, November 10, 2026
Gemini Links 10/11/2026: Running, Tektronix, and "Smallnet Information Services Zig Port"
Links for the day
Corporations Don't Lose 2 Trillion Dollars in 'Value' Over a 'Dick Story', This is an Overvaluation and Belated Correction
Nvidia is down, down, down again
Links 10/11/2026: "50 Years of Project Censored" and NVIDIA's Collapse Continues
Links for the day
Surreal Times
NVIDIA's shares fell 27% in 5 weeks
Links 10/11/2026: "Jensen Huang Could Face $81 Billion Divorce Bill" and "Nvidia Shareholders sue Jensen Huang"
Links for the day
Over at Tux Machines...
GNU/Linux news for the past day
IRC Proceedings: Monday, November 09, 2026
IRC logs for Monday, November 09, 2026
Gemini Links 10/11/2026: Open Problem in Computer Science Due to Bloat and "Queueing Nine Hours for an iPhone"
Links for the day
“Losing Huang Would Introduce a Lot of Uncertainty"
Huang won't last much longer
GNU/Linux Rose to 6% as Laptop/Desktop Operating System in Azerbaijan
In the past two weeks the average measure as seen by Clownflare is 5.7%
Intercontinental Brigading - Part XXXXV - The Brand (and Reputation)
"Russell Brand sentenced to 10 years and six months for rape and sexual assault"
Microsoft Will Pay $11,742 USD for Workers to Leave
11 lakh Indian Rupees
Since Records Began 18 Months Ago, statCounter Saw Chatbot Usage Falling Sharply
Chatbots are not becoming more popular and the commercial world is having second thoughts
Losing Their 'Faith' in Slop
Are leather jackets becoming a "signal" of "cheating on the wife"?
Protestants at the EPO Fight On, Rising in Opposition to and Against Corruption, Also Against GAFAM
Don't say we didn't warn you...
Boosters of Non-reciprocal Licensing Are Just Trying to Cancel Richard Stallman (RMS) and His Baby, GNU
If only they liked freedom as much as they love Microsoft (or Microsoft's GitHub, which is proprietary and unsafe)
Gemini Links 09/11/2026: Zephyr, Wireless Planet, and Old E-mail
Links for the day
IBM: From Illegal NDAs to Illegal Secret Settlements (Money in Exchange for Promise Not to Sue)
Insiders also explain why RAs may come weeks from now [...] IBM has marked 40,000 workers it wishes to get rid of
When Some Footage Causes Your 'Company' to Lose Almost Half a Trillion Dollars in 'Value' in a Few Minutes Your Company is Fictionally Valued
stock slips 8% because the CEO cheats on the wife
Links 09/11/2026: 'Humanitarian' Putin Knocks 600,000 Civilians Off the Grid, Eminem’s Publisher Sues Suno
Links for the day
Like Crooked Politicians, The Register MS is Selling "Dinners" (Access, Sponsors)
Talk about "hey hi".
The Register MS is Not Objective Regarding "AI", It's Paid by Pushers of the Pyramid Scheme (including Nvidia)
Some time soon we'll name some companies that pay millions to The Register MS in order to cement their role in the house of cards (while it lasts)
GAFAM Moribund
A lot of what we say about Microsoft in respect to debt is equally applicable to the rest of GAFAM
NVIDIA as a Scam Company Run by Scammers Who Fake Demand for Their Waste of Energy (Subsidising GPU Sales for Use Cases That Don't Exist)
First they targeted gamers, then fake 'currencies' (which turned out to be a bust), now it's slop (obfuscation of plagiarism using brute force and fusion) [...] We're quite glad that Huang publicly broadcasts how untrustworthy he is
Links 09/11/2026: Nvidia CEO Jensen Huang Cheats on Wife With A Suspected Chinese Spy, "400,000 Russians Killed in Battle Since 2022 Invasion"
Links for the day
Zero Tolerance for Slop
very few sites that dabbled in slop ended up well off (for it)
Over at Tux Machines...
GNU/Linux news for the past day
IRC Proceedings: Sunday, November 08, 2026
IRC logs for Sunday, November 08, 2026
Gemini Links 09/11/2026: "The Blue Wave Won't Save Us" and "Discoverability Is Only Solved If You Can Be Discovered"
Links for the day