Files with k9 extension are used as index file in DataFlex software.
Software that open k9 file
K9 file extension - DataFlex index file
What is k9 file? How to open k9 files?
File type specification:
The k9 file extension is associated with DataFlex and used for index files.
In DataFlex 2.x, the K9 index was always a 'batch' index, which means its contents were not updated when the datafile was updated. Batch indexes are only updated when the index is (re)created with dfindex or dfsort, depending on which version of DataFlex you have. This provided some advantages in certain situations, but most of those advantages have become obsolete with the faster computers and larger hard drives we enjoy today.
Depending on your backup medium, it can be faster to simply reindex a datafile versus restoring the file from the backup medium.
The default software associated to open k9 file:
Company or developer:
The Database Managers, Inc.
Relational, 4GL Object Oriented database programming language, DataFlex is used to run database programs without being recompiled, across Windows and Unix platforms.
List of recommended software applications associated to the .k9 file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open k9 file, edit k9 file, convert k9 file, view k9 file, play k9 file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with k9 file - DataFlex index file
Click on the software link for more information about DataFlex. DataFlex uses k9 file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).