Microsoft Works spreadsheet document backup
File type: Backup file
A bks file extension is related to Microsoft Works and used for its spreadsheet document backups.
Found 5 different file type records with the same bks filename suffix.
File type category:
Backup file
Date updated: January 3, 2025
The bks file extension is associated with Microsoft Works, an office suite produced by Microsoft, which was offered as smaller, less expensive, and with fewer features than the Microsoft Office suite. Its core functionality includes a word processor, a spreadsheet and a database.
The bks files are used by Microsoft Works for backups of wps. You can restore the bks files if you rename the extension to wps.
Use Works to work with *.bks files.
The bks files can be converted to works documents if you rename the extension to wps.
Software apps that create bks files:
Microsoft Windows
Software apps that backup bks files:
Microsoft Windows
Software apps that recover bks files:
Microsoft Windows
File type category:
Backup file
Date updated: September 27, 2026
IBM BookManager READ used BKS files to back up its read bookshelves. A bookshelf is the collection of books and associated bookshelf information that BookManager presents to the reader.
The file belongs to BookManager's backup and recovery workflow. It preserves bookshelf data so that the bookshelf can be restored in BookManager READ; it is separate from the individual softcopy book files.
This format is associated with the legacy Microsoft Windows version of IBM BookManager. It is not a general-purpose document format.
Open or restore a BKS file with IBM BookManager READ for Microsoft Windows. Use the program's bookshelf backup or restore function rather than opening the file as a normal document.
If BookManager is not installed, the file cannot normally be read as a standalone book. Installing the compatible Windows version of BookManager may be necessary to recover the bookshelf.
A BKS bookshelf backup does not have a useful direct conversion to a standard document format. Restore it in IBM BookManager READ first.
After restoration, any available export or printing options in BookManager can be used for the individual books, but the BKS backup itself is not normally converted directly.
Software apps that backup bks files:
Microsoft Windows
BookManager
Software applications that handle other tasks involving bks files:
Microsoft Windows
BookManager
File type category:
Document file
Date updated: September 27, 2026
IBM BookManager was a system for distributing and reading electronic documentation. The IBM Softcopy Reader is a Java-based reader and organizer for BookManager publications, consisting of the Book Reader and the Shelf Organizer. A BKS file represents a BookManager book used by this software.
IBM introduced Softcopy Reader in 2000 as a replacement for the original IBM Library Reader (ILR). Both readers can read BookManager books, but ILR is no longer supported and is provided only on an as-is basis. Softcopy Reader is legacy software, although it remains the appropriate program for this file type on Microsoft Windows.
Open the BKS file with IBM Softcopy Reader on Microsoft Windows. Install or launch the reader, then use its Book Reader function to open the BookManager book.
If the file does not open, it may depend on other files from the same BookManager publication or bookshelf. The original IBM Library Reader can also read BookManager books, but it is no longer supported.
To create a more portable document, open the book in IBM Softcopy Reader and print or copy the required content where possible.
Software applications that can open bks files:
Microsoft Windows
Software applications that can edit bks files:
Microsoft Windows
Software capable of saving bks files:
Microsoft Windows
Software apps that create bks files:
Microsoft Windows
Software applications that handle other tasks involving bks files:
Microsoft Windows
File type category:
Source code and script file
Date updated: September 18, 2019
Record marked as obsolete and not updated for a long time.
The bks file extension is associated with the Microsoft Windows NT and Microsoft Windows 2000 operating systems for IBM-PC compatible computers.
The bks file stores scheduled backup script from Windows NT and 2000.
Use any text editor to view content of *.bks files.
Software applications that can open bks files:
Microsoft Windows
Software apps that create bks files:
Microsoft Windows
Software applications that handle other tasks involving bks files:
Microsoft Windows
File type category:
Settings, options, themes or skins file
Date updated: April 16, 2019
Record marked as obsolete and not updated for a long time.
The bks file extension is associated with the NTBackup, a backup service included in older versions of Microsoft Windows operating system known as Microsoft Windows NT.
The bks file stores settings for NTBackup.
Software apps that manage or store settings in bks files:
Microsoft Windows
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