Opening a UNK File

The UNK file type is primarily associated with UVProbe.

UNK	File extension: UNK
	File type:	data

What is a UNK file

UNK files mostly belong to UVProbe by Shimadzu. A UNK file contains data used by UVProbe multifunction spectrophotomer. UNK is also the filename extension of a generic file which has been marked as unknown by a program. Operating systems and programs sometimes assign UNK filename extension to corrupted files.

How can I open a UNK file?

You need a suitable software like UVProbe to open a UNK file. You need a suitable software like UVProbe from Shimadzu to open a UNK file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your UNK file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a UNK file directly in the browser:. Just drag the file onto this browser window and drop it.

Online UNK Text Viewer

Choose your .unk file to analyze

or drag and drop it here

Online File Viewer

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Trouble Opening a .UNK File? These Steps Will Help

Because .UNK files often represent "unknown" data from various programs, they aren't universally openable.

1. Identify the Source: They may come from Shimadzu spectrophotometers or downloaded from systems that lost the original file extension.
2. Check the Header: Inspect the first bytes in a hex viewer or text editor:
   • "PK" indicates a ZIP archive.
   • Readable XML/JSON suggests structured text.
   • Magic bytes may reveal hidden media formats.
3. Use the Original Software: The original program is usually required; try Shimadzu UVProbe for spectroscopy data, or ask the sender if uncertain.
4. Use this Webpage: Drag and drop the file into our viewer to detect its format, extract readable text or metadata, and preview the contents when possible.

UNK file format details:

If you know the file format, you can also find out how to open or edit the file. The initial characters of a file are called signature, sometimes also referred to as "magic bytes". The signature can be used to infer the file format. File extension, signature and file format must match; otherwise errors will occur when the file is opened. So you need a detailed analysis of a file to find out the format and the associated program. Our evaluation of the UNK files looks like this:

The UNK file extension is used very often and includes very many different file formats. But the following two file formats are common:

• 15% of all UNK files use the ZIP format, multiple files are compressed and combined into one UNK file. UNK files contain from 7 to 18 compressed files. Common included file names are [Content_Types].xml, \_rels\.rels, \docProps\app.xml, \docProps\core.xml, \word\document.xml, \word\fontTable.xml, \word\settings.xml, \word\styles.xml, \xl\_rels\workbook.xml.rels, \xl\sharedStrings.xml, \xl\styles.xml and \xl\workbook.xml. A little tip: If you rename the file extension to .zip and then double-click, you will see the included files and images. UNK files can be up to 15 MB in size, but are often around 9 KB - 440 KB. Several words can almost always be found in the files, e.g. [Content_Types].xml. An example of a file name is unknown.unk.
• 15% of all UNK files use the popular PDF file format. PDF is short for Portable Document Format, is a file format to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems. They consist of illegible, cryptic characters. The files are 33 KB to 580 KB in size, with a median of 150 KB. unknown.unk is a typical file name. Such files are related to consultation, document, visite, fiche, imagerie, dicale, taisne and tigung.

All other UNK files (70%) have different formats, often e.g. PNG, JPG, DOC and BZh. These files are often connected to unknow, download, moesm, outlook, inline, attached or noname. Drag & drop your file here to see the file format and a preview of your UNK file!