All about CIRC Files

The CIRC file type is primarily associated with Logisim-evolution.

CIRC	File extension: CIRC
	File type:	circuit design file

What is a CIRC file?

CIRC files mostly belong to Logisim-evolution. CIRC files store circuit design and simulation data. They are used by specialized applications to describe circuit layouts.
This file type often uses an XML structure, especially in designs made with Logisim-evolution. With this structure, the file holds details such as component settings, wiring configurations, and simulation parameters. Some CIRC files, like those from Festo FluidSIM, use a GZIP compression method to store similar circuit information.

File structure: The XML format makes it possible to view or edit the file in a text editor if needed.

Software support: Open this file with Logisim-evolution for digital circuit design, or with Festo FluidSIM for fluid circuit projects.

Editing practices: It is best to use the designated simulation software to avoid errors.

FilExt.com tip: For further details on Logisim-evolution, see the Logisim-evolution webpage.

How to open CIRC files

You need a suitable software like Logisim-evolution to open a CIRC file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your CIRC file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a CIRC file directly in the browser:. Just drag the file onto this browser window and drop it.

Online CIRC Text Viewer

Choose your .circ file to view

or drag and drop it here

Online File Viewer

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How to extract texts from CIRC files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

If you want to extract texts from CIRC file or capture a screenshot, you can use our free Online CIRC File Viewer:

To do so, click the "Choose your .circ file to view" button above.
After your file is opened in browser,
click "Save as..." in the menu.
Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
Your file will be converted and downloaded.

Programs that open and convert CIRC files:

Logisim-evolution
See the previous paragraphs to learn more about the main application. CIRC files are often referred to as Logisim-evolution cads because this type of file is primarily created or used by this software.
Logisim, Festo FluidSIM
A .CIRC file most commonly refers to a Logisim circuit design file. Logisim is an educational tool for designing and simulating digital logic circuits. These files, predominantly in XML format, store the circuit's components, connections, and other design elements. Less frequently, .CIRC might point to a compressed file format associated with Festo FluidSIM, a software used for designing and simulating pneumatic and hydraulic circuits. This file format is classified as Circuit Design or Simulation File.

CIRC file format:

If you can determine the file format, the associated program can also be determined. A file format is determined by the file extension and signature, so JPEG images have the extension .jpg and the first bytes in the file are ÿØÿ. However, different programs can use the same file extension, and file extensions can be assigned incorrectly. So a detailed analysis of a file is vital in order to determine the format and the associated program. Our evaluation of the CIRC files is as follows:

The CIRC file extension is quite common and is used by different programs with different formats. The following file formats are most commonly found in CIRC files:

65% of all CIRC files are Logisim Circuit files, which are based on the XML file format. The Extensible Markup Language (XML) is a simple text-based format for representing structured information: documents, webpages, data, configuration, books, transactions, invoices, and much more. XML defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. These files contain text and words, not binary data. CIRC files can be up to 2 MB in size, but are often around 1 KB - 57 KB. The file type was developed only in the last few years. Certain words are almost always found in the files, such as <?xml version="1.0" encoding="UTF-8" standalone="no"?>, <project source="2.7.1" version="1.0">, This file is intended to be loaded by Logisim (http://www.cburch.com/logisim/) and <lib desc="#Wiring" nam. These files are attributed to logisim, adder, circuit, project, assignment, comparator, counter, digital, logic, flip and flop.
20% of all CIRC files internally utilize the GZIP file format. Gzip is a compressed archive file format. Gzip (GNU zip) is only capable of compressing a single file. The contents of these files cannot be read by a human; only a computer program can interpret the data. Most of these files are 8 KB to 87 KB in size. Several words can almost always be found in the files, e.g. eVe]f. Such files sometimes refer to schaltplan, pneumatikplan, grafcet, pneumatik, schaltung, pneumatikschaltplan, pneumatischer and pneu.

All other CIRC files (15%) have no consistent format, often e.g. PDF, XML and ZIP. Often described as professionals, notes, traffic, system, practical, security, segment, clock or lock. If you want to find out which format your CIRC file belongs to, just click on the button "Choose your .circ file to view".

Technical Data for CIRC File Extension

File classification:

CAD

Related files:

sch, v, asc, spice, cir, crc, circles, fig, idea, dgn, xml

Mime type:

application/x-logisim-circuit

a circ circuit design file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with CIRC files

Associate the CIRC file extension with the correct application.
Update your software that should actually open circuit design files. Because only the current version supports the latest CIRC file format. Search, therefore, e.g. on the manufacturer website after an available Logisim-evolution update.
To make sure that your CIRC file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .CIRC file online - secure, fast, and no downloads needed.