TC File Extension

TC file icon

TrueCrypt Volume

What is a TC file?

TrueCrypt Volume files, recognized by the TC extension, fall into the Encoded Files and Disk Image Files categories, amounting to 419 files.

The TrueCrypt Volume (TC) was created by TrueCrypt, a company that developed file format and produced programs for their use.

TC file support extends to various operating systems, including Windows, Linux and Mac OS. If you need to open a TC file, you can use one of 2 programs, such as TrueCrypt and VeraCrypt.

Programs that support TC files

How to open a TC file?

If you’re having difficulty opening a TC file, it is often due to not having the correct software. To solve the problem, choose a compatible program from the list. Then follow the link to the official developer site, download the software, and install it on your device.

When it comes to opening and working with TC files, TrueCrypt and VeraCrypt are the top choices for users. If you need the newest version of TrueCrypt, just access the TrueCrypt website. From there you can download the installer compatible with all systems.

When you finish installing TrueCrypt, the system will automatically launch TC files with it.

Set TrueCrypt as the default TC application

Changing Default Programs in Windows

  1. Right-click your TC file, then navigate to the "Open With" option and click "Choose Another Application" to continue;
  2. From the options listed in the pop-up window, specifically choose TrueCrypt as the application to handle your TC file;
  3. Be sure to check the "Always use this app" checkbox and click "OK" to save your preference.

Change the default app that opens a file on Mac

  1. Right-click or use Control + Left-click on the desired TC file to open a menu where you can choose from multiple actions;
  2. Select "Open in application" and click "Other";
  3. At the bottom of the window, you will see the "Enable" menu. It is already set to the default option, "Recommended Programs";
  4. Within this menu, select "All Programs" and then search for TrueCrypt. Check the box next to "Always open in app" to make it the default program.

Troubleshooting guide for TC file complications

When facing challenges with TC files, simple adjustments in your software can often solve the problem. Find helpful troubleshooting guidance below.

What can lead to sudden TrueCrypt crashes?

TrueCrypt crashes can occur due to outdated software versions. To mitigate this, install the latest updates for TrueCrypt products.

Restarting your computer is a crucial troubleshooting measure that can alleviate numerous common problems. Therefore, it is advisable to restart your computer before modifying any settings related to the software.

What is the recommended approach to repair a damaged TC file?

Open the damaged TC file with a recovery program, and then select the "Repair" menu item to start the repair process. Then wait for the recovery process to complete, which allows you to automatically repair corrupted encoded files.

What are the telltale signs of a corrupt TC file?

Common indications of damaged TC encoded files are:

  • Unexplained increase in TC file size;
  • File hangs or crashes in TrueCrypt or other programs;
  • The file does not open or opens with errors;
  • While working with the file, error messages appear;
  • Editing the archive in TrueCrypt results in slow or unresponsive behavior;

How to edit a TC file?

To edit TC files, it is essential to install software that supports not only viewing but also editing the encoded files. Online TC editors provide limited functionality compared to full-featured software for TrueCrypt Volume.

Best TC editors in 2026

After analyzing the criteria, we have created a list of TC editors available for use.

TC Editor SoftwareDeveloperPlatformsOverall Rating
TrueCryptTrueCryptWindows4.3 out of 5 (39 reviews)

Convert to and from TC

Keep in mind that converting a TC file may introduce some limitations, but the original format can often be restored.

Converting Files to TC Format