This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

CalcFusion for WP


What is CalcFusion?

A Computation Engine that…

  • lets users create business rules and formulas with Excel.
  • mixes live data from your WordPress site with local data stored on Excel.
  • receives data and sends computed results from/to your WordPress site via web services.

Learn more about CalcFusion at

Why CalcFusion?

CalcFusion leverages on Excel’s power and flexibility. Writing complex functions on Excel is straightforward due to its spreadsheet interface that allows for easy modifications and testing, while writing codes for the same functions can be unpredictable and tedious as programmers have to make sure that their codes are well tested and maintainable. Cut the development time in half by designing your web app interface on WordPress and using CalcFusion and Excel as you back-end. Use real-time data for your computations, and display Excel computed results instantly on WordPress.

How does it Work?

Try our live implementation of CalcFusion for WP at


  • CalcFusion Setup Page (under Settings > CalcFusion)


You must have an existing CalcFusion account before you can use the CalcFusion Plugin. If you do not have an account yet, register for a Free Trial now!

I. Installation

There are 3 ways you can install the CalcFusion Plugin for WordPress, each section below provides a step-by-step guide for each method.

A. Automatic Plugin Installation using WordPress Admin

  1. Login to WordPress Admin.
  2. From the Admin Panel, select Plugins.
  3. Click Add New.
  4. In the Search Plugins textbox, enter CalcFusion and hit Enter.
  5. Select the CalcFusion Plugin from the search results list and click Install Now.
  6. A popup window will be displayed, asking you to confirm if you want to install the plugin. Click OK.
  7. WordPress will then download and install the plugin. Click Activate Plugin to activate it.

B. Manual Plugin Installation using WordPress Admin

This method can be used if you have already downloaded the CalcFusion Plugin in .zip format.

  1. Login to WordPress Admin.
  2. From the Admin Panel, select Plugins.
  3. Click Add New.
  4. Click Upload Plugin.
  5. Click Choose File and select the .zip file.
  6. WordPress will then decompress the file and install the plugin. Click Activate Plugin to activate it.

C. Manual Plugin Installation using FTP

This method requires FTP familiarity and can be used if you have already downloaded the CalcFusion Plugin in .zip format.

  1. After downloading the .zip file, extract the plugin folder (calcfusion-for-wp) to your desktop.
  2. Login to your WordPress host using an FTP program.
  3. Upload the calcfusion-for-wp folder (from your desktop) to the wp-content/plugins folder in your WordPress directory.
  4. Login to WordPress Admin.
  5. From the Admin Panel, select Plugins.
  6. From the list of installed plugins, search for CalcFusion Plugin for WordPress and click Activate to activate it.

II. CalcFusion Setup Page

Once the plugin has been installed, you need to setup your CalcFusion parameters. These parameters are available from the Accounts page of the CalcFusion Console, sign in to your account to check.

  1. Login to WordPress Admin.
  2. From the Admin Panel, select Settings.
  3. Under Settings, select CalcFusion. The CalcFusion Setup Page will be displayed.
  4. Enter your CalcFusion credentials.
  5. Save your account parameters by clicking Save Changes.
  6. Validate your account parameters by clicking on the Login button. The result will display whether or not you were able to successfully login to CalcFusion.
  7. Upload or download your computation spreadsheets. If you have not created your computation yet, sign in to the CalcFusion Console to create a computation.


On which WordPress PHP version will the plugin work?

The plugin only works for WordPress PHP version 5.5 or higher. Certain features may not work depending on your WordPress PHP version and setting. If you are running WordPress in a lower version, please contact us and we can provide you with a solution for your version.

Does CalcFusion provide methods for both synchronous and asynchronous web service calls?

Yes, CalcFusion provides methods for both synchronous and asynchronous web service calls. To enable asynchronous calls, the CURL AsynchDNS setting must be set to “Yes”.

My CalcFusion computations are not being refreshed, what do I do?

For performance, web hosting service providers (such as WordPress) implement aggressive caching. To be able to refresh your CalcFusion computations, a solution is to implement caching exclusions on pages or file paths that should not be cached. You can check on how caching exclusions can be done, or you can contact your service provider for assistance.

For more information, please click here to view the CalcFusion FAQ page.


September 3, 2016
I installed CalcFusion into our WordPress website as a plugin. I found the CalcFusion team very responsive, helpful and open to discussing ideas.
Read all 1 review

Contributors & Developers

“CalcFusion for WP” is open source software. The following people have contributed to this plugin.

Translate “CalcFusion for WP” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.



  • Modified CalcFusion Setup Page for fix on the Computation Management section where the Computation list is only empty


  • Modified CalcFusion Setup Page to fix security related issue


  • Fixed an issue on file upload return target URL


  • Update CalcFusionClient class
  • Update CalcFusion Setup Page
  • Added WP AJAX function “calcfusion_request_service” to be able to trigger a compute from front-end through AJAX/jQuery.


  • Initial release.