File Extension SEA

  • Full name
    StuffIt Expander Archive Format
  • Developer
    Smith Micro
  • Popularity
Have you encountered a problem with a SEA file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a SEA file here. In the further part of this page we have added a list of programs that should open your SEA file. It is enough you choose a proper application for your operating system, download and install it.

What is SEA file?

The ending SEA stands for self extracting archive, so self-extracting archive. This proprietary archive format, used only on the Mac, is primarily generated by the StuffIt Deluxe software. Like any other archive format, it is used to store and compress data such as images, documents or program files in an archive file.

More info

SEA files bring along their unpacker to sit or zip files, so that later Stuffit is no longer needed. Starting an SEA file starts the unpacking process. Some older SEA files created on Mac OS 9 or earlier may not be automatically unzipped on MAC OSX. In this case, it is recommended, for example, to install the StuffIt Expander and use it to open the SEA file.

Of course, under Windows, SEA files can not be started because they are not executable Windows files. However, you can use the Stuffit Expander (for Windows) to extract SEA files.

Programs which can open a SEA file

How to open file with SEA extension?

In order to open a file with SEA extension one of the following programs must be installed on user’s system. If a problem with opening SEA file occurred, it is highly possible that none of the listed programs is present on user’s system. Even if one or more said programs are installed, there may be issues related with given programs. In order to solve a problem with SEA files, follow the instructions below.
Install Micro StuffIt Deluxe or other program from the list

Most often resolving problems with opening SEA files is very simple. Just install an appropriate program that supports such files. All of the listed programs support SEA files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of SEA files or offer file conversion options, but may not be capable of editing such files.

Set Micro StuffIt Deluxe as the default program for opening SEA files

It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate SEA files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the Micro StuffIt Deluxe applications is not on the list, select "Browse" option in order to manually locate the directory where Micro StuffIt Deluxe has been installed.


Check the section that lists most common problems with SEA files

Sometimes problems with opening SEA files may not lie with the application itself, but can arise due to other causes, such as:

  • File data is corrupted
  • SEA files has been not been completely download from the internet (only a part of the data has been downloaded)
  • Currently used user account hasn’t been granted necessary privileges to open SEA files (should that be the case, please contact your system administrator or IT specialist)
  • SEA file was being copied from a corrupted storage device and is incomplete or data is corrupted. (Copying files from unknown or untrusted sources should be conducted with great care as such files may contain malicious software, which can damage your system)