Opening an XSI File

The XSI file type is primarily associated with InfoPath.

XSI	File extension: XSI
	File type:	form definition

What is an XSI file

XSI files mostly belong to InfoPath by Microsoft. XSI is a file extension used to save 3D images created using SoftImage, a 3D design software. The data in XSI files include effects, textures, meshes, and shades that render engines may use to either display or animate 3D characters in a 3D scene. InfoPath, a software that was part of Office used XSI extension to store its form definitions. KEA! X, a discontinued PC X server used the XSI file extension to store its starter files.

How can I open an XSI file?

You need a suitable software like InfoPath to open an XSI file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your XSI file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a XSI file directly in the browser:. Just drag the file onto this browser window and drop it.

Online XSI Text Viewer

Choose your .xsi file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert XSI files:

InfoPath by Microsoft
See the previous paragraphs to learn more about the main application. XSI files are often referred to as InfoPath data files because this type of file is primarily created or used by this software.
Softimage (3D model) by Autodesk
SoftImage is a 3D design software for creating and animating 3D models on Windows and Linux operating systems. The final version of the software was released in 2015 and Autodesk no longer sells licenses for it. 3D images and models created with SoftImage could be stored with XSI file extension. This file format is classified as 3D Image. Related links: Autodesk SoftImage

Technical Data for XSI File Extension

File classification:

Data

Related files:

xsl, x, sxi, xml, zip, xsn, fdm, exe

Related links:

Microsoft InfoPath

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: quick3D.xsi
EXEFile: %ProgramFiles%\quick3D Geo\quick3D.exe %1

an xsi form definition is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with XSI files

Associate the XSI file extension with the correct application.
Update your software that should actually open form definitions. Because only the current version supports the latest XSI file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available InfoPath update.
To make sure that your XSI file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
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