Before we go further, it is important to note that this is just a proof of concept and to even use custom functions in Excel, you first need to be using the Office Insider version of Excel and to ...

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Microsoft has added the ability for users to create custom Javascript functions in Excel spreadsheets, creating concern among security experts. According to Excel program managers Michael Saunders and ...

We have an Excel Add-in that uses the textRuns feature from the Excel JavaScript API 1.18 to insert formatted text into cells. One of our clients constantly experiences an issue: no values are ...

Microsoft announced at its Build 2018 conference this week -- and in a blog post -- that it was going to add custom functionality locally in Excel spreadsheets through JavaScript. The idea here, ...

Well, that didn’t take long. A few minutes after writing about the potential risks that might be introduced by Microsoft announcing JavaScript support in Excel custom functions, I wondered out loud ...

I have a JavaScript Excel Add-in deployed in production, being used by a number of customers. The Add-in includes a custom function. I have added new optional parameters to the function but when I ...