Opening an ARB File

The ARB file type is primarily associated with Android Studio.

ARB	File extension: ARB
	File type:	data file

What is an ARB file?

ARB files mostly belong to Android Studio. ARB files use a common extension for several distinct file types.
For bioinformatics, some ARB files hold phylogenetic tree data. They store aligned ribosomal information and evolutionary trees used in species research. More details are available at ARB-Silva.
In software development, many ARB files are Application Resource Bundles. These are JSON‐formatted files that contain localizations and other resource data for apps built with Android Studio or Flutter. Visit Android Studio or Flutter for further info.
Other variants include:

Robot and injection molding configuration files used by Arburg systems (Arburg).

CNC machine data and geometry files.

Archive files storing security rules for systems like ArcSight.

Files that hold arbitrary waveform data for instruments from Tektronix.

Aircraft recording data and backup indexes in specific domains.

FilExt.com note: To view an ARB file, check its content: if you see plain text with JSON markers (like { and }), it is likely an Application Resource Bundle; if the file is binary or compressed, you must use the specialized software provided by the file’s creator.

How to open ARB files

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

Online ARB Text Viewer

Choose your .arb file to analyze

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Online File Viewer

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Programs that open and convert ARB files:

Android Studio
See the previous paragraphs to learn more about the main application. ARB files are often referred to as Android Studio data files because this type of file is primarily created or used by this software.
Alphacam (Router VB Macro) by Planit
Alphacam is a leading CAD/CAM software solution for the Woodworking industry. The core product of the company is Alphacam and is used in the manufacture of many types of components, from simple routed parts to complex, 5-axis furniture components. This file format is classified as CAD/CAM.
ARB (Sequence Database) by Department of Microbiology, TUM, Munich, Germany
ARB software is a graphically oriented package comprising various tools for sequence database handling and data analysis of rRNA sequence data. A central database of processed (aligned) sequences and any type of additional data linked to the respective sequence entries is structured according to phylogeny or other user defined criteria. The rapidly increasing number of available rRNA sequence data and the growing importance of rRNA based identification systems as well as the missing of an integrated package of cooperating software tools for data handling and analysis led ARB to establish an interdisciplinary bioinformatics group some years ago. The ARB project (latin, arbor=tree) is a joint initiative of the Lehrstuhl für Mikrobiologie and the Lehrstuhl für Rechnertechnik und Rechnerorganisation/Parallelrechnerarchitektur of the Technische Universität München. This file format is classified as Database.

ARB format details:

If you know the file format, you can also find out how to open or edit 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 does not match the file format, double-clicking on the file will cause an error upon opening. Knowledge is power - this also applies when dealing with unknown or faulty files. Below you will find our evaluation of the ARB files:

The ARB file extension is quite common and is used by different programs with different formats. The following file formats are most commonly found in ARB files:

25% of all ARB files start with the bytes 00 84 48 17 0A 20 74 68 69 73 20 69 73 20 74 68 crucial for this file format. These files are binary files, so they do not contain text, but only cryptic characters. Most of these files are 7 MB to 740 MB in size. The file type was developed 10 years ago and is still in use today. The following keywords are characteristic: this is the binary version of the gbtum data file version 1, __SYSTEM__, keys, name, species_data, description and full. Examples of file names are SILVA_138.1_SSURef_NR99_12_06_20_opt.arb or nifH_database_2012.arb. Such files sometimes refer to ssuref, nifh, database and lsuref.
20% of all ARB files internally utilize the JSON file format. JSON (JavaScript Object Notation) is a lightweight data−interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. The contents of these files can even be read by a human. The file size is in the range of 1 KB to 56 KB. Certain words are almost always found in the files, such as description. intl_en.arb or intl_messages.arb is a typical file name. Files like these are about intl, messages, strings, content and studio.

All other ARB files (55%) have no uniform format, often e.g. ZIP, DOC, .NET, File, DARwin, DBARWIN and IWZAndroidRobo. These files sometimes refer to cert, package, welcome, annual, threat, email or rules. If you want to find out what your ARB file contains, drag and drop it onto this page.

Technical Data for ARB File Extension

File classification:

Data

Related files:

abr, gz, arobject, zip, inf, tgz, fasta, ruby, check, txt, json, exe, pdf, jpg, mdmp, vpd, so, fig, bin, cfg, dat

Mime type:

text/plain

an arb data file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with ARB files

Associate the ARB file extension with the correct application.
Update your software that should actually open data files. Because only the current version supports the latest ARB file format. Search, therefore, e.g. on the manufacturer website after an available Android Studio update.
To make sure that your ARB file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .ARB file online - secure, fast, and no downloads needed.