SEP File - opening and understanding

Did your computer fail to open a SEP file? We explain what they are used for and recommend software that we know can open or otherwise handle your .SEP files.

What is a SEP file?

A .SEP file is a ChemSep project file. Through our analysis of SEP files, we know that one use of the format is ChemSep project. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

How to open SEP files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension SEP for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 10 different SEP openers which you will find listed below.

Suggest another file format using extension SEP

While we know of one file format using the .SEP file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .SEP file.

Various viewers for this file format

These apps are known to open certain types of SEP files. Remember, different programs may use SEP files for different purposes, so you may need to try out a few of them to be able to open your specific file.

SEEP/WSEEP/WUser submitted
ChemSepChemSepUser submitted
SEESEEUser submitted
ReaderReaderUser submitted
StereoEditStereoEditUser submitted
Any Video Converter FreeAny Video Converter FreeUser submitted
PredatorPredatorUser submitted
SecurEngineProSecurEngineProUser submitted
SEE ElectricalSEE ElectricalUser submitted
PhotoPhiliaPhotoPhiliaUser submitted
We have not verified any software that we know for certain will work with SEP-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with SEP-files. If you know one, please use the 'Suggest a program' link below and tell us about it!