A sif file extension is associated with some apps developed by Autodesk. A sif file contains spatial indexes.

There are 3 other file types using
the SIF file extension!

sif icon.sif - Microsoft Windows NT setup installation data

empty icon.sif - ISIF vector data

empty icon.sif - Super-IRG font

Detailed description

Software that open sif file

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SIF file extension - Autodesk spatial index

What is sif file? How to open sif files?

File type specification:

Database file type icon Database file type

sif file icon: sif filetype icon

The sif file extension is related to the apps developed by Autodesk.

Spatial indexes are used by spatial databases (databases which store information related to objects in space) to optimize spatial queries. Indexes used by non-spatial databases cannot effectively handle features such as how far two points differ and whether points fall within a spatial area of interest.

The default software associated to open sif file:

AutoCAD icon

Autodesk, Inc. logoAutoCAD  Microsoft Windows software

Company or developer:
Autodesk, Inc.

A CAD designing software with the powerful, flexible features. It is a CAD development platform that provides tools to build custom AutoCAD-based software products for specific markets. The default file formats using by AutoCAD are: DWG and DXF.

AutoCAD for Mac icon

Autodesk, Inc. logoAutoCAD for Mac  Apple macOS / Mac OS X software

Company or developer:
Autodesk, Inc.

AutoCAD for Mac software—it’s AutoCAD, for the Mac, bringing robust 3D free-form design tools and powerful drafting capabilities to your platform of choice. It takes full advantage of the macOS platform, with an intuitive, graphical user interface that makes it easy to bring your ideas to life.

Help how to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .sif file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

List of software applications associated to the .sif file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open sif file, edit sif file, convert sif file, view sif file, play sif file etc. (if exist software for corresponding action in File-Extensions.org's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting sif files.

Programs that can create sif file - Autodesk spatial index

Programs supporting the exension sif on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for create sif file action.

Microsoft Windows:

Apple macOS / Mac OS X:

Previous file extension
SIDX file extension

File-Extensions.org > Database file types

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file extension SIR


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