Files with del file extension are also information files generated by Apache Lucene. Info about deleted documents.
DEL file extension - Apache Lucene deleted documents
What is del file? How to open del files?
File type specification:
The del file extension is also used for some sort of data files that contain information about deleted files in Apache Lucene.
Apache Lucene is a free and open-source search engine software library.
The default software associated to open del file:
Company or developer:
Apache Software Foundation
Apache Lucene is text search engine library written in Java. It is a technology suitable for nearly any application that requires full-text search, especially cross-platform.
List of recommended software applications associated to the .del 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 del file, edit del file, convert del file, view del file, play del file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with del file - Apache Lucene deleted documents
Click on the software link for more information about Apache Lucene. Apache Lucene uses del 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.).