Files with $01 extension were usually used by debugging programs in MS-DOS.
Software that open $01 file
$01 file extension - MS-DOS pipe file
What is $01 file? How to open $01 files?
Command pipe in DOS redirecting a programs output to a text file with file extension .$01. Often used by debugging programs.
The default software associated to open $01 file:
Company or developer:
Microsoft Corporation
MS-DOS (short for Microsoft Disk Operating System) is an operating system commercialized by Microsoft. It was the most commonly used member of the DOS family of operating systems and was the dominant operating system for computers during the 1980s
List of recommended software applications associated to the .$01 file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open $01 file, edit $01 file, convert $01 file, view $01 file, play $01 file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with $01 file - MS-DOS pipe file
Click on the software link for more information about MS-DOS. MS-DOS uses $01 file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).