Mobius Management Systems file format
File type: Various data file
The PLC file extension identifies a file in the Mobius Management Systems format.
These files contain data used by DocumentDirect and related Mobius applications.
Found 5 different file type records with the same plc filename suffix.
File type category:
Various data file
Date updated: October 9, 2026
Record marked as obsolete and not updated for a long time.
The PLC file extension was used by DocumentDirect, DocumentDirect Application Suite, and DocumentDirect for the Internet, software developed by Mobius Management Systems, Inc.
A PLC file stores application data used by these DocumentDirect products. Its MIME type is application/vnd.Mobius.PLC.
The format is obsolete and is associated with legacy Mobius software.
Open a PLC file with the Mobius DocumentDirect product that created it, if that software is still available. Because the format is obsolete, current general-purpose applications may not recognize it.
If the file belongs to an archived DocumentDirect installation, the original application or a compatible legacy environment may be required to access its contents.
If a PLC file can be opened in the original DocumentDirect software, use its available export features to save the contents in a supported format.
No specific converter is identified for this obsolete format.
File type category:
Miscellaneous file
Date updated: August 16, 2017
The plc file extension is associated with OpenOffice.org. PLC file contains former build script. PLC files are used in programming of OpenOffice.org.
If you know more or some useful information about this file extension, please send us a message by clicking on submit extension button at the top of page.
The plc extension file is not meant to be opened manually by the user.
It is not convertable file format.
File type category:
Source code and script file
Dangerous and malicious file
Date updated: June 29, 2018
Record marked as obsolete and not updated for a long time.
The plc file extension is associated with the IBM Lotus.
The plc file stores add-in functions macros applications.
Most likely some old format without support. No further information could be found.
Software apps that import plc files:
Microsoft Windows
File type category:
Database file
Date updated: February 24, 2019
Record marked as obsolete and not updated for a long time.
The plc file extension is associated with the P-CAD, a CAD solution for Microsoft Windows operating system, developed by Altium.
The plc file contains database from P-CAD. Probably obsolete format.
Use P-CAD to work with *.plc files.
Probably can be exported to other formats.
File type category:
Source code and script file
Date updated: October 9, 2026
PL/B is a programming language optimized for screen, file and string manipulation, allowing users to create programs for various platforms. A plc file stores the program's human-readable PL/B source code rather than a compiled executable.
The source can be processed by the PL/B compiler and used to build applications for platforms supported by the PL/B software. PL/B implementations are associated with Sunbelt Computer Systems.
Open the plc file with the PL/B development tools or compiler from Sunbelt Computer Systems. These tools can compile and run the source code on a supported platform.
Because the file contains source code, a plain-text editor can also display it, but an editor will not compile or execute the PL/B program.
There is no general-purpose converter for plc files. Use the PL/B compiler to build the source into a PL/B application or other compiler output supported by the development environment.
Converting the source to another programming language requires a manual rewrite or a tool specific to the target language.