AutoCAD

How to Load File in AutoCAD?

Understanding AutoCAD File Loading

When working with AutoCAD, loading custom routines and applications can enhance your workflow. This guide describes the steps for efficiently loading files, particularly LISP routines, into AutoCAD.

Step 1: Accessing the Application Loader

Start by launching AutoCAD 2025. To load your LISP file, you must first access the Application Loader:

  1. Type APPLOAD into the command line and hit Enter.
  2. This opens the Application Load dialog.

Step 2: Adding LISP Files to the Startup Suite

To ensure your LISP files are available every time you use AutoCAD:

  1. In the Application Load dialog, find the Startup Suite section.
  2. Click on the Contents button to open the Startup Suite management window.
  3. Click the Add button to navigate your file system.
  4. Locate the desired LISP file, select it, and click Open.
  5. Repeat these steps for any additional LISP routines you wish to load.
  6. After adding all files, click Close to exit the window.

Step 3: Loading LISP Files for a Single Session

If you wish to load a LISP file for the current session without adding it to the Startup Suite:

  1. In the Application Load dialog, click the Browse button.
  2. Navigate to the LISP file’s location.
  3. Select the file and click Load.
  4. The routine will be available for use until you close AutoCAD.

Step 4: Setting Support File Paths

To streamline the loading process for future sessions:

  1. Go to the Tools menu and select Options.
  2. Under the File Locations tab, look for Support File Search Path.
  3. Click the New button, then browse to the folder where your LISP files are stored (e.g., D:LISP Files).
  4. Confirm the changes by clicking Apply, then OK.
  5. Restart AutoCAD for the changes to take effect.

Understanding LISP Files in AutoCAD

LISP files, denoted with the .lsp extension, contain scripts written in the AutoLISP programming language. These files allow users to automate repetitive tasks and customize commands, greatly enhancing productivity within AutoCAD.

Frequently Asked Questions

1. Can I load multiple LISP files at once?
Yes, you can add multiple LISP files to the Startup Suite in a single session. Simply repeat the selection process for each file you want to load.

2. What happens if I close AutoCAD without loading a LISP file?
If a LISP file is not added to the Startup Suite or loaded in the current session, it will not be available the next time you open AutoCAD.

3. Are LISP files compatible with all AutoCAD versions?
While LISP files generally work across multiple AutoCAD versions, specific functions may vary. It’s advisable to check compatibility if migrating between different AutoCAD versions.

About the author

Wei Zhang

Wei Zhang

Wei Zhang is a renowned figure in the CAD (Computer-Aided Design) industry in Canada, with over 30 years of experience spanning his native China and Canada. As the founder of a CAD training center, Wei has been instrumental in shaping the skills of hundreds of technicians and engineers in technical drawing and CAD software applications. He is a certified developer with Autodesk, demonstrating his deep expertise and commitment to staying at the forefront of CAD technology. Wei’s passion for education and technology has not only made him a respected educator but also a key player in advancing CAD methodologies in various engineering sectors. His contributions have significantly impacted the way CAD is taught and applied in the professional world, bridging the gap between traditional drafting techniques and modern digital solutions.