Frequently Asked Questions

Your questions. Our answers.

What does “your system” refer to?

“Your System” refers to any application, program, software, or computer system that your organization uses for your business needs such as CRM, ERP, Insurance, Loan, Banking, etc. It could be a Legacy System or a Cloud System.

What is Web Service?

Web Service is a method of communication between two applications (in this case, between CalcFusion and your system) over a network.

What is a trigger?

A trigger is an event that launches an action. Example: Clicking a button that triggers a computation.

What are parameters?

Parameters are values that are passed in order to be used into a Computation.

Can I try CalcFusion for free?

Yes, you can register for a Free For Life plan, or a 30-day trial for the other cloud plans.

How do I pay?

You can pay online using Paypal or via Credit Card. Contact us if you wish to pay through other methods.

You can pay online using Paypal or via Credit Card. Contact us if you wish to pay through other methods.

One computation is equivalent to a call to the Web Service in order to execute one Excel spreadsheet calculation.

Can I upgrade or downgrade my subscription anytime?

Yes. You have those options on your Account page.

What is your refund policy?

Generally speaking, we do not provide refunds for subscriptions that are cancelled before end of period covered. However, a request for refund can be considered if the cause is proven to be a system error.

My requirements do not fit any of your plans, can I do my own configuration?

Yes you can! Please contact us and we’ll be happy to customize a plan just for you.

Why did my monthly billing change?

You may have exceeded the maximum number of computations of the plan you have subscribed to.

Can I use my own server?

Absolutely! Please contact us and we’ll be happy to discuss your options.

How is CalcFusion server version licensed?

Per server Processor/Core. Please contact us for more information.

Does the server license expire?

No, server licenses are perpetual. One time payment only.

Does the server license include maintenance?

No, maintenance is optional and can be ordered annually.

Can I use my server license for my clients?

No, a server license is for internal use only. Please check out our Partner page to find out what your options are for your clients.

Does my Excel spreadsheet need to follow a specific format?

There are 2 tabs we specifically need: An ‘In’ tab, where all the live data parameters from the Master IT System will be sent to. An ‘Out’ tab, where the Master IT System gets the summarized results.

Can I use other spreadsheets aside from MS Excel?

We only accept MS Excel 2010 Xlsx format.

Do you support all Excel functions?

Yes. Our latest version, CalcFusionXXL, can execute all Excel functions. However, the standard Subscription Plans (in the Pricing page) have been limited to commonly used functions in order to provide consistent server performance. You may see the list of standard functions in our Technical documentation. If you are using functions not on the list, please contact us regarding CalcFusionXXL by emailing us at

Does CalcFusion archive all our Excel files?

Yes, we archive all the computations run on CalcFusion including the data used for the computation and the results. Archives can be downloaded in Excel format.

Can I test my spreadsheet using CalcFusion?

Yes! – CalcFusion’s Audit functionality checks your spreadsheet for errors and returns the audit results for your reference. – The Unit Test functionality runs the computation using one set of data and returns the computed results.

Where can I download your user manual?

You can find it in our Technical Documentation page.

Can I connect from any of my Systems?

We provide an SDK – our first available are Java, PHP, C# and SalesForce, but we are working on many others!

Where can I find your API documentation?

You can find it in our Technical Documentation page.

Will CalcFusion work with large file sizes?

Yes. With CalcFusionXXL, there is no limitation to the file size that you can use. If you are using a standard Subscription Plan (on the Pricing Page), it is best to work with small files to get the best performance. Email us at if you would like to know more about CalcFusionXXL.

Where can I get support?

Email us your question at We only provide support to account administrators.

What if I go over my Computation limit?

We bill excess of computations by 100s.Therefore, we count the number of your excess of computations and then round them up to the nearest 100.

How can I know how many computations I’ve already done?

In the Account section, dashboards will recap your situation.

How fast can CalcFusion compute?

In general, smaller files equate to faster computation. If you are working with large files, you will need CalcFusionXXL, which is able to optimize your file in order to provide the best possible performance. Email us at if you would like to know more about CalcFusionXXL.