Troubleshooting: File Extension .SIS
If your PC cannot read or open .SIS files, it is highly recommended that you fix this problem with PC Cleaner. PC Cleaner will thoroughly analyze your computer and make sure it has the necessary software and file associations to correctly read and open your SIS files.
How To Open .SIS Files
Download and run PC Cleaner.
Click 'Start Scan' to analyze your computer.
Click the 'Fix Now' button and you're done!
PC Cleaner Features
- Identifies Files Your PC Doesn't Recognize
- Recommends Software to Open .SIS Files
- Controls Which Programs Open Various File Types
- Monitors System for File Associations Changes
- Repairs Broken File Associations
- Detects Which File Extensions are Supported
- Microsoft Certified Software
- Free Database and Program Updates