LSP File Extension

What is LSP file?

Full format name of files that use LSP extension is Lisp Program Source Code Format. Files with LSP extension may be used by programs distributed for Linux, Mac OS, Windows platform. LSP file format, along with 1205 other file formats, belongs to the Developer Files category. Clozure CL supports LSP files and is the most frequently used program to handle such files, yet 10 other tools may also be used.

Programs which support LSP file extension

The list that follows enumerates programs compatible with LSP files, divided into 3 categories based on operating system on which they are available. Files with LSP suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

How to open file with LSP extension?

Problems with accessing LSP may be due to various reasons. Fortunately, most common problems with LSP files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Get the Clozure CL

The most common reason for such problems is the lack of proper applications that supports LSP files installed on the system. The most obvious solution is to download and install Clozure CL or one to the listed programs: AutoCAD, Windows Notepad, Adobe ExtendScript. Above you will find a complete listing of programs that support LSP files, classified according to system platforms for which they are available. If you want to download Clozure CL installer in the most secured manner, we suggest you visit website and download from their official repositories.

Step 2. Check the version of Clozure CL and update if needed

If the problems with opening LSP files still occur even after installing Clozure CL, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Clozure CL is available. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. This can be one of the causes why LSP files are not compatible with Clozure CL. The latest version of Clozure CL should support all file formats that where compatible with older versions of the software.

Step 3. Associate Lisp Program Source Code Format files with Clozure CL

After installing Clozure CL (the most recent version) make sure that it is set as the default application to open LSP files. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

Selecting the first-choice application in Windows

• Clicking the LSP with right mouse button will bring a menu from which you should select the Open with option
• Next, select the Choose another app option and then using More apps open the list of available applications
• The last step is to select Look for another app on this PC option supply the directory path to the folder where Clozure CL is installed. Now all that is left is to confirm your choice by selecting Always use this app to open LSP files and clicking OK.

Selecting the first-choice application in Mac OS

• By clicking right mouse button on the selected LSP file open the file menu and choose Information
• Open the Open with section by clicking its name
• Select the appropriate software and save your settings by clicking Change all
• Finally, a This change will be applied to all files with LSP extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Check the LSP for errors

If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the LSP file in question. Problems with opening the file may arise due to various reasons.

1. Check the LSP file for viruses or malware

If the file is infected, the malware that resides in the LSP file hinders attempts to open it. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the scanner detected that the LSP file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Verify that the LSP file’s structure is intact

If you obtained the problematic LSP file from a third party, ask them to supply you with another copy. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. If the LSP file has been downloaded from the internet only partially, try to redownload it.

3. Verify whether your account has administrative rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log out of your current account and log in to an account with sufficient access privileges. Then open the Lisp Program Source Code Format file.

4. Make sure that the system has sufficient resources to run Clozure CL

The operating systems may note enough free resources to run the application that support LSP files. Close all running programs and try opening the LSP file.

5. Check if you have the latest updates to the operating system and drivers

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Lisp Program Source Code Format file. It may be the case that the LSP files work properly with updated software that addresses some system bugs.

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