Minecraft Anvil file
File type: Game file
An MCA file is a Minecraft Anvil region file used to store part of a game world.
Minecraft creates these files as part of a world save. The Anvil format is the standard region format used by Minecraft Java Edition.
Found 4 different file type records with the same mca filename suffix.
File type category:
Game file
Date updated: October 16, 2026
The MCA file extension is associated with Minecraft, a sandbox-building indie game originally created by Markus "Notch" Persson. Anvil is the name of the world-storage format used by the game.
An MCA file stores region data for a Minecraft world. A region contains the data for multiple chunks, including terrain, blocks and other information needed to load that part of the world. The files are normally kept in the region directory inside a world save.
Minecraft Java Edition uses MCA files when it saves and loads worlds, including on Microsoft Windows. The format remains in use, so an MCA file is normally meaningful only as part of the corresponding Minecraft world save.
Open an MCA file by placing it in the region directory of a Minecraft Java Edition world save, then load that world in Minecraft. The game expects the file to be in the correct world-save location and cannot use an isolated region file as a normal document.
Make a backup of the world before replacing or editing MCA files. A compatible Minecraft world editor may also be able to inspect the stored region data, but ordinary text or image applications cannot open it meaningfully.
An MCA file is not normally converted to another file format. It is a component of a Minecraft world save, and Minecraft Java Edition continues to use the Anvil format directly.
World-editing tools may provide export options for selected world content, but those exports are not a direct conversion of an MCA file and depend on the particular tool and target format.
Software applications that handle other tasks involving mca files:
Microsoft Windows
File type category:
Source code and script file
Date updated: July 25, 2019
Record marked as obsolete and not updated for a long time.
The mca file extension is used by Apis Ceratina program, which is used to automate your repetitive tasks to a single mouse click or a keystroke. Probably a macro file.
Software applications that handle other tasks involving mca files:
Microsoft Windows
Apis Ceratina
File type category:
Various data file
Date updated: October 17, 2018
Record marked as obsolete and not updated for a long time.
The mca file extension is also related to a special medicare cost audio file format used by HFS Medicare Auditor program.
Looks like it is no longer available and probably replaced by newer program.
Software apps that create mca files:
Microsoft Windows
Auditor
Software applications that handle other tasks involving mca files:
Microsoft Windows
Auditor
File type category:
GIS, GPS navigation and map file
Date updated: October 16, 2026
The mca file extension is associated with PC Navigator, GPS navigation software developed by MapFactor for Microsoft Windows.
An mca file stores navigation data used by PC Navigator. The software reads the file as part of its navigation data.
On Microsoft Windows, open or use an mca file with MapFactor PC Navigator. The program uses these files as part of its GPS navigation data.
An mca file may not open as a standalone document outside the navigation software.
Conversion to other formats is not possible.
The file is used by MapFactor PC Navigator rather than as a general-purpose document.
Software applications that can open mca files:
Microsoft Windows
Software apps that create mca files:
Microsoft Windows
Software applications that handle other tasks involving mca files:
Microsoft Windows
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