Visual Basic Control Typelib Cache file
File type: Binary file
Files with oca extension are used for Microsoft Visual Basic. It is a binary file format.
File type category:
Binary file
Date updated: July 24, 2017
The oca file extension is associated with Visual Basic, by Microsoft Corporation. For every custom control file (.OCX) that Visual Basic uses, there is an accompanying .OCA file of the same file name. For example, GRAPH16.OCX has an accompanying .OCA file called GRAPH16.OCA. An .OCA file is a binary file that functions as both an extended type library file and a cache for the custom control file.
Microsoft Visual Basic (Microsoft Windows)
Language