Opening a UDM File

The UDM file type is primarily associated with RPG Maker MV.

UDM	File extension: UDM
	File type:	data file

What is a UDM file

UDM files mostly belong to RPG Maker MV.

This UDM file can serve multiple purposes depending on the application that created it.
If your file comes from a game context, it is often a game patch file used as an update for RPG Maker MV (associated with CatSystem2). In this case the file holds update data that modifies or extends the game.

Other uses include:

A log file for BareTail, where the file helps manage and review live log data. You can learn more about BareTail at BareTail.
A User Data Model in ZEISS Forum software, meaning it acts as a data container for user management and settings. More details are available at ZEISS.
An executable file on Windows that carries diagnostics data for PassMark, provided by Universal Diagnostics Manager (USBDiags32).
A container for simulation information in the Moldflow universal data model (using Source2 format) that supports Moldflow Insight. Visit Moldflow Insight for further details.

FilExt.com tip: Each version of a UDM file is built for a specific type of data and should be opened only with its original application to ensure proper viewing and functionality.

How can I open a UDM file?

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

Online UDM Text Viewer

Choose your .udm file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert UDM files:

RPG Maker MV
See the previous paragraphs to learn more about the main application. UDM files are often referred to as RPG Maker MV data files because this type of file is primarily created or used by this software.
MapView (User-Defined Module) by MotCreations
Module container for game map and graphics. Assuming a default install these files go into the C:\PROGRAM FILES\MOTCREATIONS\MAPVIEW\USERMODS\ directory. This file format is classified as Game.

UDM file format details:

The file format determines how the data is stored in the file. A file format is determined by the file extension and signature, so JPEG images have the extension .jpg and the first bytes in the file are ÿØÿ. Frequently, however, one file extension is used by different programs for different file formats, and one file format for different file extensions. Exact knowledge of the format is therefore important in order to solve problems occurring in files. Below is our analysis of the UDM files:

An UDM file includes different formats for different programs. The file formats most commonly found in UDM files are:

55% of all UDM files use the same file format, which have the signature UDM æ. These files contain neither text nor words, but only data. The files are 210 KB to 110 MB in size, with a median of 110 MB. The file type is a fairly new file format. The following keywords are characteristic: UDM, CopyRight(c)2019 Dojin Otome, www\data\CommonEvents.json and www\data\Items.jso. The following filename is common: -(1.35_2.07)-.udm or -(2.01_2.02)-.udm.
15% of all UDM files use the same file format, which have the signature 00 00 00 00. They consist of unreadable binary data. UDM files can be up to 150 KB in size, but are often around 17 KB - 88 KB.

All other UDM files (30%) have no uniform format, frequently e.g. EXE and Source. The category is tail, bare, video or usbdiags. Drag & drop your file here to see the file format and a preview of your UDM file!

Technical Data for UDM File Extension

File classification:

Data

Related files:

upd, exe, umd, usm, zip, txt, mdf, mp3, tif, pdf, iml, log, dat, xml

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

How to solve problems with UDM files

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