Opening 031 Files

The 031 file type is primarily associated with ISO8211 Viewer.

031	File extension: 031
	File type:	catalog file

What is a 031 file?

031 files mostly belong to ISO8211 Viewer. An *.031 file is an ISO 8211 catalog file.: It is a file that stores structured catalog records as defined by the ISO 8211 standard.
This format organizes data into records and fields for efficient data exchange.
In some cases the file is also called an ISO 9660 catalog file, which is used in systems that index data on optical discs.
Notable details:

Stores metadata in a predefined record format.

Helps index and organize large sets of data.

Facilitates data exchange in professional applications such as mapping and library systems.

The content is not plain text and requires specialized software for viewing or conversion.
FilExt.com tip: For technical details, refer to the ISO website.
Files with the extension 031 are often also jpg images or pdf documents, but zip compressed archives or medical images such as DICOM are also common. Use the Online 031 File Viewer on this page to find out the file format being used, and to view your 031 file.

How can I open a 031 file?

You need a suitable software like ISO8211 Viewer to open a 031 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 031 file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a 031 file directly in the browser:. Just drag the file onto this browser window and drop it.

Online 031 Text Viewer

Choose your .031 file to view

or drag and drop it here

Online File Viewer

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How to extract texts from 031 files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

1. To do so, click the "Choose your .031 file to view" button above.
2. After your file is opened in browser,
3. click "Save as..." in the menu.
4. Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
5. Download the converted file.

031 file format:

Every file has a defined file format, i.e. how the data is arranged in the file. Each file format has a unique extension and almost always a unique signature. For example, Microsoft Word documents have the extension .docx and the signature (usually the first 3 characters in this file) PK. If the file extension or signature does not match the file format, errors will occur when opening or editing the file. When there is a problem with a file, the first step to solving it is to determine the file format. Below you will find our evaluation of the 031 files:

031 is rarely used as a file extension and mainly uses a defined 031 format. The two most common formats are as follows:

• 70% of all 031 files have the same signature 002. The contents of these files are easily readable with a text editor. The files are on average 2 KB in size and range from 870 bytes to 130 KB. The file type is old but is used even today. Several words can almost always be found in the files, e.g. 0001CATD, (I(5)), 1600;&   Catalogue Directory Field, 0000;&, 0100;&   ISO/IEC 8211 Record Identifier, IMPL, 002623LE1 0900073, CATALOG, RCNM!RCID!FILE!LFIL!VOLM!, SLAT, WLON and ISO 8211 Record Identifier. An example of a file name is CATALOG.031.

The remaining 30% of all 031 files are different files with different signatures. You can get all the details of your 031 file by dragging it onto this page or by clicking the button "Choose your .031 file to view" above.