All about MXX Files

The MXX file type is primarily associated with Allplan.

MXXFile Extension MXX
File extension: MXX
File type:  Allplan BCM Index

What is an MXX file?

MXX files mostly belong to Allplan. An MXX file is a compressed file format primarily associated with Allplan, a Building Information Modeling (BIM) software developed by Allplan. These files serve as index files for Allplan BCM (Building Cost Management), contributing to the software's cost estimation and management functionalities within the broader context of construction project management. The MXX file format employs compression to store data efficiently, optimizing project file sizes and facilitating smoother data handling within the Allplan environment. Given its role as an index file, the MXX file likely contains structured references to various project components and resources relevant to cost management, enabling Allplan BCM to quickly access and process the necessary information for accurate cost calculations and reporting.

How do you open MXX files?

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

Online MXX Text Viewer

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.MXX File Not Opening? How to Fix It:

Since .MXX files can come from different programs, they aren't universally openable.

  1. Identify the Source: Files received from architects or construction workflows usually suggest an Allplan BCM Index file.
  2. Check the Header: Inspect the first bytes in a text editor or hex viewer:
    • "PK" implies a ZIP-based compressed archive.
    • Readable XML/text suggests a configuration file.
    • Scrambled symbols indicate a proprietary binary format.
  3. Use the Original Software: The original program is usually required. Try Nemetschek Allplan or Allplan BCM, or ask the sender if uncertain.
  4. Use this Webpage: Drag and drop the file into our viewer to detect the format, extract readable text/metadata, and preview when possible.

Technical Data for MXX File Extension

File classification:
Compressed File Format
Related files:

an mxx Allplan BCM Index is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with MXX files

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