OTC File Extension

Programs that support OTC files

• Windows ³
• Mac OS ³
• Linux ²

Windows

• OpenOffice
• StarOffice
• LibreOffice

Mac OS

• OpenOffice
• NeoOffice
• LibreOffice

Linux

• OpenOffice
• LibreOffice

How to open a OTC file?

The most common reason why a OTC file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.

The most popular programs for working with OTC files are OpenOffice, LibreOffice and StarOffice. To get the latest version of StarOffice, open the Oracle website where a universal installer for all operating systems is available.

Once setup is done, your operating system should assign StarOffice as the default app for OTC files.

Make StarOffice the default OTC viewer

Changing the default program in Windows

1. Start by right-clicking on your OTC file and selecting the "Open With" option. From there, click "Choose another app" to continue;
2. Inside the popup window, scroll through the list of applications and specifically choose StarOffice as the application to associate with your OTC file;
3. Check the "Always use this app" checkbox and click "OK".

Change the default app to open files on Mac

1. Right click or use Control + Left Click on the desired OTC file to access a dropdown menu of actions;
2. Select "Open in application" and click "Other";
3. Scroll down to the bottom of the window, where you will find the "Enable" menu. Default, "Recommended Programs" will be selected;
4. In this menu, choose "All Programs" and navigate to StarOffice. Check the box next to "Always open in app" to make it the default program.

Convert to and from OTC

If a OTC file is difficult to handle, you might try converting it to formats such as PDF or similar, which may be easier to work with.

Please note that after converting a OTC file, some functionality may differ from the original. However, in many cases, it can be converted back to its original format.

Convert OTC to other file formats

• OTC to PDF

Finding answers to OTC file problems

If you encounter issues with OTC files, don’t worry—most can be fixed with minor software adjustments. Refer to the troubleshooting tips below.

How to edit a OTC file?

To edit OTC files, you need to install specialized software that allows you not only to open but also to modify document files. Online OTC editors usually provide fewer features than software created specifically for OpenDocument Chart Template.

List of Top OTC editors 2026

Following these criteria, we have put together a list of recommended OTC editors.