Operis Analysis Kit
  • Applications
    • Spreadsheet Modelling
    • Spreadsheet Review
  • Features
    • Mapping a Model
    • Comparing Model Versions
    • Summarizing a Model
    • Using Named Ranges
    • Review Issues
    • Formula Explorer
      • Trace Dependents
      • Trace Precedents
    • Compliance with Best Practices
    • Excel Utilities
    • Excel Shortcuts on OAK
  • Pricing
  • Support
    • FAQ
    • Documentation
  • Blog
  • About OAK
  • Get in touch
Operis Analysis Kit
  • Applications
    • Spreadsheet Modelling
    • Spreadsheet Review
  • Features
    • Mapping a Model
    • Comparing Model Versions
    • Summarizing a Model
    • Using Named Ranges
    • Review Issues
    • Formula Explorer
      • Trace Dependents
      • Trace Precedents
    • Compliance with Best Practices
    • Excel Utilities
    • Excel Shortcuts on OAK
  • Pricing
  • Support
    • FAQ
    • Documentation
  • Blog
  • About OAK
  • Get in touch

Try OAK!     Buy Now!

Blog

OAK5 – the Latest Version of the World’s Favourite Financial Modelling Software is out. 1 Jul 2020

Better, Faster, Smarter - OAK5, the fifth-generation version of the software, OAK5, is now available.

Share now

The Operis Analysis Kit (OAK) is the world’s leading tool used to review and develop complex spreadsheets. It is a well-known Excel Add-in used by financial modellers in the world’s largest banks, blue-chip firms and public sector bodies. OAK received a Lifetime Achievement Award at The Financial Modelling Innovation awards last month.

The fifth-generation version of the software, OAK5, is now available offering an additional set of powerful and cutting-edge tools that help any Excel user identify potential formula risk, lack of compliance with industry standard modelling good practices and improve model quality.

OAK5 gives users the ability to make sense of complex spreadsheets in order to identify shortcomings and mitigate the risk of making poor decisions. OAK5 provides the ability to save time in reviewing, developing and evaluating complex spreadsheets.

The four core tools collect key information about the model regarding the size, layout, formula complexity and formulae risk offering valuable insights for reviewers and model developers. This includes a powerful Search tool to identify cells not aligned with the best modelling practices.

The Professional tools increase the granularity of the analysis by allowing users to fully understand the model mechanics to the formula level regardless of its complexity whether by identifying discrepancies between two formulas to the possibility or pruning any calculations that are not on the active path of a formula.

Rui Sobreiros, OAK5 product manager, said: “OAK5 is a significant upgrade in the development of our industry-leading software – it’s better, faster and smarter. We have listened to user feedback and modified our offering to produce a state-of-the-art solution of which we are extremely proud.”

OAK5 is available under a subscription licensing model offering true flexibility and convenience to accommodate the needs of any modeller. Customers have the choice between a monthly rolling contract or a pre-paid annual plan.


Share now

Categories

  • Discover OAK
  • Modelling Insights
  • OAK Releases

Archive

Companies who decipher complex spreadsheets with OAK

ofgem-logo
Barclays_logo
BDO logo
CIBC-Logo
engie-energy-and-services-logo
hochtief logo
HSBC
Investec Bank logo
national audit office logo
Sonnedix logo

Pricing

Reduce the time and cost associated with interpreting a spreadsheet model using OAK. See what’s included in the price.

Blog

Discover how OAK helps solve a myriad of Excel issues on our blog.

Support

We’re here to help. Get answers to questions about installation, licensing and new releases.

OAK review

Everything you need to build, analyze and audit a spreadsheet. And make better decisions

Try OAK for free
Made for
Made for Microsoft
Made for Microsoft Excel

Start your 30 day Free Trial

  • This field is for validation purposes and should be left unchanged.

Privacy Policy
OAK
  • Features
  • Pricing
  • About OAK
  • Support
Legal
  • Privacy Notice
  • Cookie Policy
  • Legal disclaimers
  • Licence Agreement
OAK Applications
  • Spreadsheet Modelling
  • Spreadsheet Review
Financial Modelling Training
  • Financial Modelling for Solar Energy Projects
  • Financial Modelling for US P3 Projects
  • Financial Model Assessment and Review
  • Spreadsheet Modelling for Public Sector
  • Aligning Contracts and Financial Models for Lawyers
  • Excel VBA for Project Finance Models
Contact us
  • 110 Cannon Street
    London
    EC4N 6EU
  • +44 (0)20 7562 0400
  • [javascript protected email address]
Winners of the 2020 Financial Modelling Innovation Awards

©2026 Operis Analysis Kit. All Rights Reserved.

Powered by FL1 Digital