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Informations about the R03 filename extension and the file formats associated with it

We collected the information you should know about the .r03 filename on this page. If you were sent a(n) .r03 file in an e-mail, but you don’t know what to do with it, then you can find help here. We strive to suggest free, open-source applications that are available to everyone for the file formats.

2 filename extension(s) are in our database

.rar - WinRAR Archive

The RAR file is a Archive file, which is connected to the WinRAR Archive according to our registry. With the adequate settings, the WinRAR Archive (.rar) files can be opened or converted with the help of WinRAR.

Format description:
RAR format
Magic string:
- / -
001, 002, 003, 004, 005, 006, 007, 008, 009, 010, 016, 032, r00, r01, r02, r03, r04, r05, r06, r07, r08, r09, r10, r11, r17, r30, r99
Related links:
Related extensions:
WinRAR Archive
WinRAR Recovery Volume

.r01 - MicroStation Modification System Resource File

The R01 file is a Data file, which is connected to the MicroStation Modification System Resource File according to our registry. With the adequate settings, the MicroStation Modification System Resource File (.r01) files can be opened or converted with the help of Bentley MicroStation.

Format description:
R01 format
Bentley MicroStation
Magic string:
- / -
r02, r03, r04, r05, r06, r07, r08, r09, r10, r99
Related links:
Related extensions:
Bentley MicroStation Drawing
Bentley MicroStation Design Library
Bentley Microstation Raster Image
MicroStation Modification User Resource File
Bentley MicroStation VBA Project
MicroStation Modification Project Resource File

Important! Programs other than the ones listed above may also use the .r03 file extension. Even harmful programs can create files with the .r03 extension to store data in them. Always be careful with .r03 files coming from unknown sources. Don’t open executable files that arrived in mails, even if you know the sender.

The .r03 file can’t be opened on your computer?

If the program necessary for opening the .r03 file is installed properly on your computer, then the quickest and simplest way to open the .r03 file is to double-click on the file’s name. If that doesn’t work, then the right software probably isn’t installed on your computer.

While opening the .r03 file, you may receive an error message from the associated application, this can be caused by the following:

Incorrectly given .r03 extension

The .r03 filename extension can be given incorrectly sometimes. The cause of the error could be a mistake or a simple typo. We found the following incorrectly given filename extensions that are the most frequent in the case of .r03 files.


Maybe you’re not even looking for the .r03 file extension?

It’s possible the the file’s extension was given incorrectly. Below, we list some filename extensions that are similar to the .r03 extension. It’s possible that the one you’re looking for is among them.

ArcInfo ASCII Export
HEC-RAS Flow File
HEC-RAS Geometry File
WinRAR Archive
TaxCut Federal Data

Associated applications

The Windows operating system stores information about the applications associated to the file extensions in the registry database. The associations can be queried or modified in the Command Prompt window with the "assoc" command.

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We gladly accept application suggestions, but our primary goal is to suggest reliable, open-source applications that can be freely distributed to the users.

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