Del extension is related to Deleted files. Some softwares can keep these files by changing their extensions.
DEl word derived from Delete word. It is found in keyboard. Del extension files may be the files which deleted by PCTracker or Apache Lucene kind of softwares. Some softwares can keep the deleted files by changing their extensions instead of sending recycle bin.
What to use DEL
Deleted files can be restored by Recuva or Data Recovery software
which page related to DEL file
DEL Related Searches
You can check related links about DEL fileextension.