What are system files and how do I open a system file?
| File Type | Category | File Format | |
|---|---|---|---|
| .adm | System Files | Administrative Template File | |
| .bcd | System Files | Windows Boot Configuration Data File | |
| .chg | System Files | Windows Net Logon File | |
| .clb | System Files | COM+ Catalog File | |
| .diagcab | System Files | Troubleshooting Pack Cabinet File | |
| .diagpkg | System Files | Troubleshooting Pack File | |
| .ffl | System Files | Find Fast Document List | |
| .ffo | System Files | Find Fast Document Properties Cache | |
| .fid | System Files | Microsoft Catalog Indexing Service File | |
| .msc | System Files | Microsoft Management Console Snap-in Control File | |
| .msp | System Files | Windows Installer Patch | |
| .pfx | System Files | PKCS #12 Certificate File | |
| .scb | System Files | Scrambls Encrypted File | |
| .spl | System Files | Windows Print Spool File |