A daily updated filename extension database!

STDL file extension

The table below provides useful information about the .stdl file extension. It answers questions such as:

  • What is the .stdl file?
  • What program do I need to open a .stdl file?
  • How can the .stdl file be opened, edited or printed?
  • How can I convert .stdl files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Swift To-Do List Database

Swift To-Do List Database .stdl file icon
The STDL file is a Swift To-Do List Database. Swift To-Do List is a desktop to-do list program for Windows.
STDL format description not yet available
Category: Data files
Application: Swift To-Do List
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
STDL aliases:
STDL related links:
STDL related extensions:

Other types of files may also use the .stdl file extension.

🚫 The .stdl file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

sdl, std, stel, stl, strl, tdl

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

SureThing CD Labeler Document
Esterel Source Code
Corel Paradox Script
SuperTux Level Data
EBU-STL Standard Subtitle File
Prosa State Transition Diagram Graphics Data
MathType Translator Definition Language
Alias Wavefront Scene Description Language Data
SPEFO Stellar Spectra Analysis Data
SmartDraw Library

🔴 Can't open a .stdl file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .stdl file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .stdl file extension, write to us!

Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
This page is available in the following languages: Český Deutsch English Español Suomi Français Magyar Italiano 日本語 Nederlands Norsk Português Român Русский Svensk 中文