.BK1 File Extension
- Developer by: Autodesk
- Category: Backup Files
- Format: Binary
What are .BK1 files and how to open them?
Can't open .BK1 file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .BK1 file.What is a .BK1 file extension?
.BK1 file extension is created by Autodesk. .BK1 has been classified as Backup Files. The format of .BK1 file is Binary.
.BK1 is Autodesk Backup File
Backup file created by Autodesk products, including AutoCAD Mechanical, Mechanical Desktop, and AutoCAD Map; stores a .BAK file that has been renamed with the ".bk1" extension; renamed when the Autodesk program terminates unexpectedly.
BAK files are automatically created when users save drawing files. Therefore, when a program crashes, Autodesk applications try to rename the BAK file to BK1 to prevent a corrupted drawing file from replacing the original backup.
NOTE: If the BK1 extension is already in use, Autodesk programs use ".bk2" through ".bk9," as well as ".bka" through ".bkz" and ".baa" through ".bzz" until a unique extension is found.
| Windows |
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File Type 2 Windows Indexing Service File
File created by Indexing Service, a component of Windows used to automatically index file system search information; contains information used for making fast file searches in Windows; typically seen with the name propstor.bk1.
BK1 files are often located within the C:\System Volume Information\catalog.wci\ directory. Other catalog index files in this directory may include .BK2, .PS1, .PS2, .FID, .000, and .HSH files.
NOTE: Windows may also create BK1 files on external drives, such as USB flash drives.
| Windows |
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File Type 3 ERwin Backup File
Backup file created by ERwin Data Modeler, a data modeling program; contains a backup of a .ER1 diagram file; created automatically by ERwin when the ER1 file is opened; used to recover a data model file if the original becomes corrupted.
BK1 files are used by older versions of ERwin Data Modeler.