This series of articles will give you an overview of how to manage spreadsheet risk. These articles are written by Myles Arnott from Excel Audit
- Part 1: An Introduction to managing spreadsheet risk
- Part 2: How companies can manage their spreadsheet risk
- Part 3: Excel’s auditing functions
- Part 4: Using external software packages to manage your spreadsheet risk
Background – Spreadsheet Risk Management
In the Managing Spreadsheet Risk series so far we have looked at the concept of spreadsheet risk and how to manage it both at a company level and at a spreadsheet level using Excel functionality. In this final article we are going to have a quick look at an example of spreadsheet auditing software.
What to look for in a Spreadsheet Risk Management Software
First off I should state that there is a wide range of spreadsheet auditing solutions in the marketplace of different types and styles and at a variety of costs. In this section I would like to take a little time to explain the criteria we applied when we were sourcing auditing software.
These were our requirements:
- Robust, well proven software rated by its existing users and the industry
- A stand-alone solution rather than an Excel add-in
- Functionality:
- Produce a list of spreadsheets within a directory and provide details of their key attributes to enable prioritization by complexity profile
- Perform the core audit checks and provide facility to record audit notes
- Compare two spreadsheets in order to identify changes
Our Recommendation
Based on these requirements we chose EXChecker from Finsbury Solutions. The functionality and screen shots below are of EXChecker being used to audit the spreadsheet that we reviewed in part 3 of this series. (Download Part 3 Excel Workbook)
Auditing software in action
The first thing to note is that EXChecker opens a copy of the spreadsheet within the EXChecker program and stores your audited version in a specified directory, the original is untouched.
Once you open the spreadsheet the software automatically un-hides hidden rows and columns and hidden (and very hidden) workbooks. This can be seen in row 15 which the software has unhidden and highlighted in red:
EXChecker enables you to carry out a wide range of auditing tests such as: identifying errors; spreadsheet links; macros; numbers stored as text; hard coded numeric; high risk functions; and duplicated formulas.
We will focus on three pieces of functionality so that we can compare them to the Excel functions that we used in Part 3 of this series.
Map cell Input/Outputs
Selecting “Map cell Input/Outputs” applies a color format to the cells containing constants and formulas as we achieved via my macro in Part 3. The formatting is applied to all worksheets automatically.
Highlight Formulas
Selecting “Highlight formulas” identifies the cells containing formulas as achieved by my macro but also applies different textures to indicate where a formula is not consistent with those around it:
Workbook Summary
The Workbook Summary function performs a full audit of the spreadsheet and then outputs the results in a separate spreadsheet that can be incorporated into the audit report.
This is a comprehensive set of audit checks and a very powerful tool. It very quickly provides you with essential information that would take considerably more time to achieve manually.
One important check within the Workbook Summary function that I would draw your attention to is the “Show all invisible/masked cells” analysis. This returns all of the cells that have been made invisible in some way. The comment against cell U5 below should set alarm bells ringing: “Font + Cell colours match”.
I’ve purposefully avoided the “F word” so far in this series as the vast majority of spreadsheet errors are just that, errors. Some people do innocently hide cell contents using white on white formatting (please don’t!) but this is a strong indicator for potential fraud and worth reviewing in further detail.
Conclusion
Hopefully this series has given you an insight into the potential risks that spreadsheets pose and also some methods for mitigating those risks. Whilst the articles have only been a brief introduction to the topic of spreadsheet risk management, I would like to think that it has given you the tools to implement a safer spreadsheet environment and the appetite to learn more about the subject.
What about you?
Do you use any external tools or software to manage spreadsheet risk? What is your experience with them? How do you use these tools? Please share your recommendations & tips thru comments.
Thank you Myles
Many thanks to Myles for writing this series. Your experience in this area is invaluable. If you enjoy this series, drop a note of thanks to Myles thru comments. You can also reach him at Excel Audit or his linkedin profile.
Disclosure
Chandoo.org is not affiliated with Finsbury Solutions. Our review of EXChecker is purely based on what Myles thought about it.
13 Responses to “Gantt Box Chart Tutorial & Template – Download and Try today”
Hi Chandoo
As one of your students I have followed your detailed example through with great success. However, Excel is acting in an unexpected way and I wonder if you could take a look?
http://cid-95d070c79aef808e.office.live.com/self.aspx/.Public/Gantt%20Box%20Chart.xlsm
On my version, I have to type 40239 (Which equates to 2 Mar 2010) to get the chart to display 31 May 2010 (which should be 40329)!!??
Have I done something wrong or is Excel acting up?
Thx
Oli
PS Your example file in 2007 displays correctly.
Hi,
I like this idea a lot, but I agree the name is a little drab.
As an American I may just be seeing things, but to me the combination of lines and bars on your chart looks like a bunch of cricket bats.
Maybe you could work that into a catchier name. 🙂
Cheers!
Here is some code I use to keep the axis synched.
It may be useful to some of your readers
It is based on a comment I saw on Daily Dose of Excel.
Function SynchGanttAxis(Cname, lower, upper)
'Sets the X min and X max for Category axis
Application.Volatile
On Error Resume Next
'
'Top Horizontal Axis
With ActiveSheet.Shapes(Cname).Chart.Axes(xlCategory, 1)
.MinimumScale = lower
.MaximumScale = upper
End With
'Bottom Horizontal Axis
With ActiveSheet.Shapes(Cname).Chart.Axes(xlValue, 2)
.MinimumScale = lower
.MaximumScale = upper
End With
End Function
Function SynchVerticalAxis(Cname, lower, upper)
Application.Volatile
On Error Resume Next
' Excel 2007 only
'Right hand vertical axis
With ActiveSheet.Shapes(Cname).Chart.Axes(xlValue, 1)
.MinimumScale = 0
.MaximumScale = upper
End With
End Function
@Oli.. Can you check your file again.. I see 40329...
@Dave: Even I saw things.. the bars actually looked like lollipops. How about calling this lollipop chart - now that would be yummy and goes along the tradition of naming charts after eatables (bar, pie, donut...)
@Bob: Superb stuff... thanks for sharing 🙂
Hi Chandoo
This looks really good and I think it can also be applied to show project phases / milestones.
Question: Thinking further could this be amended to display a project lifecycle (Idea through to Implementation say 7 phases) on one bar / row? Just imagine 20 projects within a programme all on one chart one bar each showing their respective lifecycle stages i.e. on one page.
Idea: As the Gantt Box Chart this is quite intensive to set up re formatting etc how about the added extra of once you have completed this to "Save as template" i.e. saves the formatting and layout of the chart as a template so you can apply to future charts. Simple to do and will save the time formatting etc again and again and again.
Therefore tip: Click on your chart demo and then click on Save As template icon (2007) - edit file name and click on save. Ready to use / apply via Templates in Change Chart Type window.
Thanks and be very interested if the lifecycle question can be resolved
Mike
How embarrassing.
I was obviously suffering from numerical dyslexia. I was one of those days.
@Mike H: You can easily make this chart to work like a generic project lifecycle plan chart. All you have to do is,
1. in a separate sheet define the steps of lifecycle and various dates in a table (with 5 columns for each of the projects you have).
2. now use a control cell to input the project name you want to show in the chart
3. based on the input, use OFFSET Formulas to get the correct data
4. Rest is same as the tutorial above
For more info on the dynamic charting visit http://chandoo.org/wp/tag/dynamic-charts/ and http://chandoo.org/wp?s=OFFSET
Your solution is really smart but in the en Excel isn't meant to do stuff like this. I, as a former PM, always thought is was frustrating that you had to do stuff like this for something simple like a Gantt chart. So I built Tom's Planner. And would like to plug it here. I think it really solves the problem you are trying to solve in the most efficient way. Check out http://www.tomsplanner.com for a free account or play around with the demo.
Hi there,
Chandoo - this is really a very nice and helpfull chart - I adopted it, so I can report a forecast or the delay of a certain task (coming from my role as an auditor for projects).
One topic I´m currently struggeling with: I do have a project lasting for lets say 12 month. For a management reporting, I want to have kind of snapshot, lets say one month back and 2 month in the future. I tried with the offset formula, but failed. Any idea?
Thx
Lopi
[...] Ein viel geliebter Klassiker ist die Erstellung von GANTT-Diagrammen mit Excel. Wir hatten das Thema wiederholt schon hier. Chandoo.org hat sich mal wieder mit einer neuen Variante hervorgetan: Das GANTT-Box-Chart. [...]
[...] [...]
Hi Chandoo - fantastic xls. One thing I can't figure out how to do is adjust the alignment of the vertical axis. I would like to left align so that I could indent to represent sub tasks. Can that be done? Or is there a better way?
I've been trying to work out if there's a way to show weekends on the graph. The closest thing I've got is to add them on a secondary axis, but then I haven't been able to keep both axis lined up together! Any ideas?
Following on from this - is it possible to show things like holidays?