Files with dtl extension can be found as application logs on Windows platform.

There are 4 other file types using
the DTL file extension!

empty icon.dtl - The Sims game data

empty icon.dtl - Pro/ENGINEER data

empty icon.dtl - Pinnacle Studio 400 TitleDeko data

empty icon.dtl - eSignal file

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DTL file extension - Microsoft Windows application log

What is dtl file? How to open dtl files?

File type specification:

Various data file type icon Various data file type

dtl file icon: dtl filetype icon

File extension dtl is related to generated application logs in Windows 98 and Windows ME.

In these versions of  Windows, the Task Monitor tracks which programs are launched and how they load from disk, and it records the info in the Applog folder.

The Defrag utility then uses this info to provide special optimization for the program files you use most often. Rather than rearranging the clusters of these files in sequential order, Defrag rearranges them in the order they're loaded when the program launches.

This dtl file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

Updated: May 12, 2020

The default software associated to open dtl file:

Microsoft Windows Millennium Edition icon

Microsoft Corporation logoMicrosoft Windows Millennium Edition  Microsoft Windows software

Company or developer:
Microsoft Corporation

Microsoft Windows Millennium Edition was the last Microsoft operating system with MS-DOS collaboration. However the DOS Real Mode is not supported and many older DOS applications are not working on Windows ME. Windows GUI is similar to Windows 2000. Windows Me includes Movie Maker, Windows Media Player 7, Internet Explorer 5.5, system restore functions, system protection, Windows Update etc.

Help how to open:

The *.dtl application logs are used for internal purposes of Defrag tool from Windows.

How to convert:

Possibly can be export or printed in PDF format via the Print function.

List of software applications associated to the .dtl 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 dtl file, edit dtl file, convert dtl file, view dtl file, play dtl file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting dtl files.

Programs that can create dtl file - Microsoft Windows application log

Programs supporting the exension dtl on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for create dtl file action.

Microsoft Windows:

Main software associated with dtl file by default:
Microsoft Windows Millennium Edition small icon Microsoft Windows Millennium Edition
Other suggested software:
Microsoft Windows small icon Microsoft Windows

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