Click the "Select File" button above, and choose your OCT file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert OCT to another file type
To convert OCT Filings to another format, you need MCA Portal or other Data software.
Convert a file to OCT
To convert other file formats to the "Corporate Filing / Medical Data" file type, you need software like MCA Portal or a similar tool.
About OCT files
The .oct file format is primarily used by the India Ministry of Corporate Affairs (MCA) to process digitally signed corporate filings and e-form submissions. These files securely wrap XML data and digital signatures. Secondary uses include Optical Coherence Tomography (OCT) data files for 3D medical imaging generated by Thorlabs equipment, and compiled octree scene files used by the Radiance Lighting Simulation Suite for ray tracing.
Dealing with .oct files is extremely frustrating due to their proprietary nature. Government MCA files are locked strictly to official government portals and will throw errors if you try to open them in a standard text editor or document viewer. Medical OCT files are large, complex containers holding multi-layered imaging data that require expensive, specialized clinical software. Furthermore, legacy systems like the T-Mobile Sidekick frequently renamed standard email attachments to .oct, rendering standard images unreadable.
To actually view the contents of an .oct file, conversion or extraction is the most practical workaround. For government filings, converting the extracted data to PDF provides a permanent, readable format for archiving. For medical imaging, converting or extracting the internal data to standard TIFF or ZIP files allows you to view the 3D scan layers in standard image editors. If the file is a renamed legacy email attachment, converting it to JPG or PDF will instantly restore it. Drop your file here to analyze and convert it securely right in your browser.
Convert.Guru analyzes your OCT file, detects the exact format, and lets you read the text inside.
If you want to convert OCT file to PDF, DEC, OBJ, FBX, DAE, 3DS, MAX, BLEND, MA, MB, C4D or STL, you can use MCA Portal or similar software from the "Digitally Signed Government Filing" category. In the File menu, look for Save As… or Export….
To convert DWG, DAE, X3D, IGES, WRL, JT, SKP, 3DS, 3DM, OBJ, STEP or FBX files to OCT, try MCA Portal or another comparable tool in the "Digitally Signed Government Filing" category.
The OCT 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 OCT converter.