OCA Converter

Extract text from ActiveX cache files (OCA)


Drop or upload your .OCA file

How to extract text from your OCA file

  1. Click the "Select File" button above, and choose your OCA file.
  2. You’ll see a preview, if available.
  3. Click the "Convert file to..." button to extract text information.

Convert OCA to another file type

To convert OCA cache files to another format, you need Microsoft Visual Basic or other Developer software.

Convert a file to OCA

To convert other file formats to the "Visual Basic Cache" file type, you need software like Microsoft Visual Basic or a similar tool.


About OCA files

A .OCA file primarily functions as an ActiveX Control Cache File created by legacy Microsoft Visual Basic environments. It stores compiled type library information for custom controls (OCX), allowing the development environment to load them faster. Alternatively, the .OCA extension is used for HPE One Config Advanced system configurations (often stored as XML), and Open CASCADE open-source CAD geometry files used in FreeCAD.

The main disadvantage of the ActiveX .OCA format is its extreme obsolescence. It relies on outdated, proprietary Microsoft technologies that pose security risks and are not supported by modern operating systems or web browsers. These binary cache files cannot be easily read or converted without the original legacy development tools. If you have an HPE config variant, it is intimately tied to specific proprietary server hardware, making the raw data useless outside that specific IT ecosystem.

Converting a .OCA file depends entirely on its internal structure. An HPE config file can often be viewed or converted to standard TXT or XML formats. If it is an Open CASCADE CAD file, it might be convertible to standard 3D formats like STEP or IGES. Because this format is often a closed, proprietary cache, standard online converters fail to process it. Our analyzer detects the underlying embedded format, allowing you to bypass annoying legacy limitations.

Convert.Guru analyzes your OCA file, detects the exact format, and lets you read the text inside.

Users also converted PDF, O, LIB and BAS files.


FAQ

If you want to convert OCA file to JS, TS, PY, JAVA, CPP, C, CS, PHP, RB, GO, RS or SWIFT, you can use Microsoft Visual Basic or similar software from the "ActiveX Control Cache" category. In the File menu, look for Save As… or Export….

To convert SH, PY, KT, PS1, SWIFT, LUA, PL, JAVA, SCALA, JS, VBS or TS files to OCA, try Microsoft Visual Basic or another comparable tool in the "ActiveX Control Cache" category.



The OCA Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our OCA converter.