>> SEMI file

SEMI file format description

Many people share .semi files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .semi file can be edited, converted or printed with. On this page, we try to provide assistance for handling .semi files.

1 filename extension(s) found in our database.

.semi - Spartan Semi-Empirical Data

The SEMI data files are related to Spartan. SEMI file is a Spartan Semi-Empirical Data. Spartan is a quantum chemical calculation program with nice visualization opportunities.

Data files
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Spartan Semi-Empirical Data related extensions:
Spartan Molecule Data
Spartan Document
Spartan Entry Database
Spartan Spinput Format File
Spartan Molecular Mechanics Data

Naturally, other applications may also use the .semi file extension. Even harmful programs can create .semi files. Be especially cautious with .semi files coming from an unknown source!

Can't open a .semi file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .semi file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

emi, sem, seml, smi

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

WeintekHMI EasyBuilder 8000 EMI File
Synchronized Multimedia Integration Language
Pocket Tanks Emitter File
SMILES Chemical Document
Alpha Five Set Object
Sealed EML Document

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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If you have useful information about the .semi file format, then write to us!