Opening a $A File

The $A file type is primarily associated with AutoCAD.

$A	File extension: $A
	File type:	Autosave File

What is a $A file?

$A files mostly belong to AutoCAD by Autodesk, Inc. AutoCAD and AutoCAD Lite register this type as a temporary file.

How can I open a $A file?

You need a suitable software like AutoCAD to open a $A file. You need a suitable software like AutoCAD from Autodesk, Inc. to open a $A 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 $A file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a $A file directly in the browser:. Just drag the file onto this browser window and drop it.

Online $A Text Viewer

Choose your .$a file to analyze

or drag and drop it here

Online File Viewer

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.$A File Not Opening? How to Fix It:

$A files can originate from various programs and aren't universally openable by standard applications.

Identify the Source: If received from an architect or engineering workflow, it is likely an AutoCAD Autosave File.
Check the Header: Open the file in a text editor or hex viewer to inspect the first few bytes.
- Seeing "AC10" indicates an AutoCAD drawing format.
- Readable XML/JSON suggests a configuration or data file.
Use the Original Software: Opening the file usually requires the original program; try renaming it to .dwg and opening with Autodesk AutoCAD or DWG TrueView, or ask the sender if uncertain.
Use this Webpage: Drag and drop your .$A file into our viewer to detect the format, extract readable text/metadata, and preview when possible.

Technical Data for $A File Extension

Program ID:

AutoCADTempFile, AutoCADLTTempFile

Related files:

sv$, cas, plt

a $a Autosave File is a special file format by Autodesk, Inc. and should only be edited and saved with the appropriate software.

How to solve problems with $A files

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