.STI file extension
To open .STI files on Windows, install Apache OpenOffice or LibreOffice.
To open a .sti file, you will need compatible software like Apache OpenOffice or LibreOffice, which support legacy StarOffice formats.
Last updated: March 19, 2026
Open on your device
Choose your operating system for a dedicated step-by-step opening guide.
How to open .STI files
Use these platform-specific instructions to open .STI files safely.
Windows
- Install Apache OpenOffice or LibreOffice.
- Open the software and use 'File > Open' to select the .sti file.
Mac
- Download and install LibreOffice.
- Launch LibreOffice and open the .sti file via 'File > Open'.
Linux
- Install LibreOffice from your package manager.
- Open LibreOffice and navigate to 'File > Open' to access the .sti file.
iOS
- Use a cloud service to convert the file to a compatible format.
Android
- Use an app like AndrOpen Office to open the .sti file.
Security notes
- Always scan .sti files with antivirus software before opening.
- Be cautious of .sti files from unknown sources as they can contain macros.
- Ensure your office suite is updated to protect against vulnerabilities.
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Can't open this file?
These are the most common causes and fixes when .STI files fail to open.
Common reasons
- File won't open
- Corrupted file
Fix steps
- Ensure you are using a compatible office suite like LibreOffice.
- Try converting the file to a different format using an online converter.
OS-specific troubleshooting
Convert .STI to other formats
Use conversion tools to change .STI files into formats your software supports.
- .STI → .3FR
- .STI → .ARW
- .STI → .BAY
- .STI → .BMP
- .STI → .BMP
- .STI → .BMQ
- .STI → .CINE
- .STI → .CR2
- .STI → .CRW
- .STI → .CS1
- .STI → .DC2
- .STI → .DCR
- .STI → .DNG
- .STI → .EPS
- .STI → .ERF
- .STI → .FFF
- .STI → .GIF
- .STI → .GIF
- .STI → .HDR
- .STI → .HEIC
- .STI → .IA
- .STI → .ICO
- .STI → .JLS
- .STI → .JP2
- .STI → .JPEG
- .STI → .JPG
- .STI → .JPG
- .STI → .K25
- .STI → .KC2
- .STI → .KDC
- .STI → .MDC
- .STI → .MEF
- .STI → .MOS
- .STI → .MRW
- .STI → .NEF
- .STI → .NRW
- .STI → .ORF
- .STI → .PEF
- .STI → .PNG
- .STI → .PNG
- .STI → .PSD
- .STI → .PXN
- .STI → .QTK
- .STI → .RAF
- .STI → .RAW
- .STI → .RDC
- .STI → .RW2
- .STI → .RWL
- .STI → .SGI
- .STI → .SR2
- .STI → .SRF
- .STI → .SRW
- .STI → .SVG
- .STI → .TGA
- .STI → .TIFF
- .STI → .TIFF
- .STI → .WEBP
- .STI → .X3F
- .STI → .XBM
- .STI → .XPM
What is a .STI file?
.sti files are presentation template files originally used by StarOffice, which was an office suite developed by Sun Microsystems. These files store pre-designed slide layouts and styles that can be used to create new presentations.
Background
The .sti file format was part of the StarOffice suite, which was popular in the late 1990s and early 2000s before being acquired and rebranded as OpenOffice.org by Sun Microsystems. The format was used to store presentation templates, allowing users to create presentations with consistent styles and layouts. Although StarOffice itself is no longer in use, its file formats are still supported by modern open-source office suites like Apache OpenOffice and LibreOffice. These applications allow users to open, edit, and convert .sti files to more widely used formats such as .odp or .pptx. While not commonly used today, .sti files can still be found in archives and older documentation.
Further reading
Authoritative resources for more details on the .STI format.
Common .STI issues
File won't open
The software might not recognize the file format.
- Ensure you are using a compatible office suite like LibreOffice.
- Try converting the file to a different format using an online converter.
Corrupted file
The file might be damaged or incomplete.
- Try opening the file with a different software.
- Check for a backup or previous version of the file.
FAQ
Can I convert .sti files to other formats?
Yes, you can convert .sti files to formats like .odp or .pptx using LibreOffice or online converters.
Is StarOffice still available?
StarOffice has been discontinued, but its successor, Apache OpenOffice, is available.
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