PL1 file format description

Many people often share .pl1 files without providing instructions on how to use them. This can make it difficult for users to determine which program is compatible for editing, converting, or printing .pl1 files. To address this issue, we have created this page to offer assistance and guidance on handling .pl1 files. We provide information on compatible software, editing instructions and conversion options to help users effectively interact with .pl1 files.

Our aim is to simplify the process and promote seamless use of the .pl1 file format.

3 filename extension(s) found in our database.

.pl1 - PL/I Source Code

The PL1 development files are related to PL/I Compilers. The PL1 file is a PL/I Source Code. PL/I (Programming Language One) is a procedural, imperative computer programming language designed for scientific, engineering, business and systems programming applications.

Application:PL/I Compilers
Category:Development files
Magic:- / -

PL/I Source Code related extensions:

  • pyo Python Optimized Code
  • sit PDP-10 Fortran-77 Compiler Source Code
  • ar Java JRE 1.3 Library
  • aas Windows Application Assignment Script
  • prm Xilinx ISE PROMGen Memory Map Data
  • dcurl Curl Detached Applet

.pl1 - 3D Home Architect Floor Plan

The PL1 document files are related to 3D Home Architect Deluxe. The PL1 file is a 3D Home Architect Floor Plan. 3D Home Architect Deluxe is a 3D building, house design software developed for builders, architects and home DIY enthusiasts.

Application:3D Home Architect Deluxe
Category:Document files
Magic:- / -

3D Home Architect Floor Plan related extensions:

  • t2l TouchDraw Library
  • pt5 Adobe PageMaker 5.0 Template
  • cdc Canvastic Drawing
  • af2 Micrografx ABC FlowCharter 2 Document
  • ls8 Lumion v8 Scene
  • pzs PhotoSuite Slide Show

.pl1 - Adventure Maker Plugin

The PL1 data files are related to Adventure Maker. The PL1 file is an Adventure Maker Plugin. Adventure Maker is a FREE innovative toolkit to create point-and-click games and multimedia software in minutes, without any scripting or programming.

Application:Adventure Maker
Category:Data files
Magic:- / -

Adventure Maker Plugin related extensions:

  • mdf I-DEAS Master Drafting Machine Data
  • tec TECkit Compiled Mapping Table
  • sgy SEG-Y Geophysical Data
  • celx Celestia Script File
  • nl NoteLedge Data
  • roi Shark ROI System Data

Be careful.

It is important to understand that the .pl1 file extension is not limited to a particular set of applications. Other programs besides the intended ones can also use the .pl1 extension to create files. This includes potentially harmful programs or malware that may generate .pl1 files for various purposes. Be especially cautious with .pl1 files coming from untrusted or unknown sources.

Can't open a .pl1 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 an extension, you receive the following message:

Select an app to open this .pl1 file

To set the .pl1 file association in Windows 11, you can follow these steps

  1. Open the Settings app by clicking on the Start menu and selecting the gear icon.
  2. In the Settings app, click on System and then select Apps from the left-hand side menu.
  3. Scroll down and click on the Default apps option.
  4. Under the Default apps section, you will find various categories such as Email, Web browser, and Music player.
  5. Locate the category that matches the file type you want to associate, such as Photos for image files or Video player for video files.
  6. Click on the current default app listed under the category. A list of available apps will appear.
  7. Choose the app you want to set as the default for that file type. If the desired app is not listed, click on More apps to see additional options or click on Look for an app in the Microsoft Store to search for apps in the Store.
  8. After selecting the app, it will become the default choice for opening files of that type.

It's worth mentioning that you don't always need to set .pl1 file association. Many applications can open .pl1 files without requiring any specific file association to be set.

The .pl1 file extension is often given incorrectly

Based on searches conducted on our site in the past year, we have compiled a list of the most common misspellings. These frequent misspellings can cause confusion and hinder search accuracy. Our goal in providing this list is to help users find the right information more easily and enhance their overall search experience on our website.

These misspellings were the most common in the past year:

p1, p11, pi1, pl, pll, plq, plw, pm1, po1, pp1

Is it possible that the filename extension is misspelled?

There is a possibility that the .pl1 filename extension is misspelled. To assist users in identifying potential errors, we provide a list of similar file extensions in our database.

Filename extensions similar to .pl1:

Operating systems

At, we strive to provide a seamless user experience by ensuring compatibility with a wide range of operating systems. The following is a comprehensive list of the operating systems currently supported by

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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If you find the information on this .pl1 page useful, please feel free to link to this page. >> PL1 file