.BK1 File Extension

BK1 files exist as 3 different types. Please find information about each of them below.

Type 1: Autodesk Backup File

General Information

Title BK1 File Extension
Extension .bk1
Full Form Autodesk Backup File
File Type Backup File
Developer Autodesk, Inc.
MIME Type application/octet-stream

File Function

Primary Function Store backup
Additional Functions Prevent data loss
Features Auto-generated, Sequentially numbered

File Characteristics

Quality High fidelity
Supports Layers Yes
Supports Transparency Varies
Editable With software

Use Cases

CAD Drafting Yes
Data Recovery Yes
Project Archiving Yes

Security and Practices

Security Risks Data corruption
Best Practices Regular backups, Version control

Historical/Version Information

Initial Release Varies with software
Latest Version Tied to AutoCAD versions

Associated Types

Similar Extensions .dwg, .dxf, .sv$

Software Compatibility

Software Usage Policy OS Compatibility
AutoCAD Subscription Windows, macOS
AutoCAD LT Subscription Windows, macOS

Type 2: Windows Indexing Service File

Learn about .bk1 file extension and open bk1 files. BK1 files are backup files created by Autodesk applications. When program crashes, applications try to rename backup file to BK1. This prevents corr...

General Information

Title BK1 File Extension
Extension .bk1
Full Form Backup File (1)
File Type Backup File
Developer Microsoft
MIME Type application/octet-stream

File Function

Primary Function Store backup
Additional Functions Data recovery
Features Incremental backup, Automated creation

File Characteristics

Quality Binary data
Supports Layers No
Supports Transparency No
Editable Not directly

Use Cases

System Backup Yes
Data Recovery Yes
Incremental Backups Yes

Security and Practices

Security Risks Unauthorized access
Best Practices Secure storage, Regular backups

Historical/Version Information

Related to Indexing Service
Deprecated Yes

Associated Types

Similar Extensions .bk2, .bkf, .old

Software Compatibility

Software Usage Policy OS Compatibility
Windows Indexing Service Included with OS Windows
Backup Software Varies Varies

Type 3: ERwin Backup File

BK1 files are backup files for ERwin Data Modeler. They contain backups of ERwin diagram files. BK1 files are created automatically when opening an ERwin file. They can help recover data if original f...

General Information

Title BK1 File Extension
Extension .bk1
Full Form ERwin Backup File
File Type Backup File
Developer Quest Software
MIME Type application/octet-stream

File Function

Primary Function Store backup
Additional Functions Data recovery, Data protection
Features Version control, Redundancy

File Characteristics

Quality High integrity
Supports Layers N/A
Supports Transparency N/A
Editable Indirectly via ERwin

Use Cases

Data Modeling Yes
Database Design Yes
Disaster Recovery Yes

Security and Practices

Security Risks Unauthorized access
Best Practices Regular backups, Access control

Historical/Version Information

Associated With ERwin versions
File Evolution Updates with ERwin

Associated Types

Related Extensions .erwin, .saf

Software Compatibility

Software Usage Policy OS Compatibility
ERwin Data Modeler Paid, Trial available Windows