Extract text from OTC files
To convert your OTC file to another format, you need LibreOffice or other Data software.
To convert other file formats to the "Chart Template / Database" file type, you need software like LibreOffice or a similar tool.
The .otc extension is a notorious source of confusion because it serves three completely different functions depending on where it originated. Most commonly, in a business or web context, it is an OpenDocument Chart Template used by open-source suites like LibreOffice and OpenOffice to save reusable chart formatting. However, if you found this file in a Windows system folder, it is likely a Telemetry Cache Database (SQLite format) or an OPC Quick Client configuration file used in industrial automation by Kepware.
Users struggle with .otc files because modern operating systems rarely assign a default application to them. If it is a chart template, you cannot open it in standard tools like Microsoft Excel without conversion, locking you out of your visual data. If it is a telemetry or configuration file, it appears as binary gibberish in text editors, making it impossible to audit the data or migrate settings. For chart templates, the best workflow is converting to PDF for archiving or JPG for quick previews. For the SQLite database variants, converting to CSV or XLSX allows you to analyze the hidden data in a standard spreadsheet. T. Rowe Price users may also encounter this as a disguised XML or PDF financial statement.
Convert.Guru analyzes your OTC file, detects the exact format, and lets you read the text inside.
Users also converted OCT, PDF, ODT, JPG, ZIP, TXT, DB4, EVENTS and RSK files.
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 OTC converter.