I have a attachment in my case. So, when the user clicks on the attachment he should be able to preview the excel file. Instead, in my case the user is able to download the file once he clicks on the excel file.

Natively, Pega doesn’t support direct inline rendering or previewing of Excel files (.xlsx / .xls) within the browser out-of-the-box; clicking them will default to a file download. If a true Excel preview is a hard requirement, you generally have to look at custom implementation: Third-Party View…

Implementing XLSX preview can be quite challenging task and you need 3rd party implementation for it. Please verify with business the exact intent before starting work on it.

How to preview an Excel file instead of download( On Click )

General

RameshSangili (Ramesh Sangili) June 8, 2026, 1:13pm 2

I hope you’re referring the UI Kit application. Please check this post

Download a Section as PDF on click of a button

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How to preview an Excel file instead of download( On Click )

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