Tips to open MMCOLLECTION file

Can't open the MMCOLLECTION file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open MMCOLLECTION files as well as a list of programs that support MMCOLLECTION files.

MMCOLLECTION file extension

File Name Microsoft Outlook Mail Manager Plug-in Collection Format
File Developer Microsoft
File Category Data Files

The MMCOLLECTION file is supported on 1 operating systems. Depending on your operating system, you may need different software to handle the MMCOLLECTION files. Below is a summary of the number of programs that support and open the MMCOLLECTION file on each system platform.

Operating systems
  • 1
  • 0
  • 0
  • 0
  • 0
  • 0

What is MMCOLLECTION file?

The MMCOLLECTION file has been categorized as Data Files. The creator of this file is Microsoft. Additionally, the Data Files category contains 1326 of other files. Microsoft Outlook Mail Manager Plug-in Collection Format is supported by 1 operating systems. The file will work on Windows systems, unfortunately not on others. The main program that supports this format is Mail Manager. This was created by Oasys Software.

How to open MMCOLLECTION file?

The most common problem when using Microsoft Outlook Mail Manager Plug-in Collection Format is that a specific MMCOLLECTION is not associated with the program. Thus, when you open MMCOLLECTION, the program selection wizard or some other program starts. How to solve such a problem?

The first thing you should do is just "doubleclick" on the MMCOLLECTION file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.

Step 1. Install Mail Manager

In this case, you should first verify that the Mail Manager application is installed on the computer. The easiest method is to use the system search engine by entering the program name Mail Manager in it. If we do not have this program, it is worth installing it, as it will help you automatically associate the file MMCOLLECTION with Mail Manager. Below you will find a list of applications that support MMCOLLECTION files.

Programs to open MMCOLLECTION file

Remember to download programs supporting MMCOLLECTION files only from verified and safe sources. We suggest using the websites of software developers.

Step 2. Create association of Mail Manager with MMCOLLECTION files

If the application is or has been freshly installed, but the MMCOLLECTION file still does not use the Mail Manager program, it means no association. It is most convenient to call the context menu with the right mouse button and select Properties. Information about the file and the program that the file is associated with are available here. Changes can be made using the "Change" button. It may happen that in the next window there will be no appropriate program - however, this can be corrected with the "Browse" option where you should manually indicate the program location. The "always use the selected program ..." field will set the Mail Manager application as the default for handling the MMCOLLECTION file.

Step 3. Update Mail Manager to the latest version

If, despite the association of the Mail Manager program with the Microsoft Outlook Mail Manager Plug-in Collection Format file, the file still does not open, check the program version and possibly update it to the newest version. Some applications allow you to update from the program level, and for others you need to download the installer from the Oasys Software page and install.

Step 4. Check for the following problems with the MMCOLLECTION file

Of course, it may happen that despite the above steps, the file still does not work. The most common file problems are:

Very often, the file may be size 0 or incomplete. This suggests truncating the MMCOLLECTION file contents when downloading or copying. Downloading the file again should fix the problem.
The most common cause here is computer viruses. Perform a virus scan using available and up-to-date anti-virus software. Alternatively, you can use the scanners available online. The scan should cover the entire computer, not only the MMCOLLECTION file that we want to open. Sometimes virus-infected MMCOLLECTION files cannot be recovered, so make a backup in advance.
This can happen especially when the program is dynamically developed and the structure of the MMCOLLECTION files changes over time. Help should be sought from the software developer, as they usually recommend using free file converters or installing an older version of the program.
There can be many reasons for this. Depending on the type of file, it is necessary to repair it accordingly. Some programs offer the option of recovering data from damaged MMCOLLECTION files. The easiest way is to restore the file from a backup, if there is one, or contact Microsoft
The program indicates that the file is encrypted or corrupted. The encrypted MMCOLLECTION files can be used by the device on which they were encrypted, on any other device it is required to have the appropriate cryptographic key and decrypt the file before its recovery.
Some operating systems do not allow file operations in certain locations, eg in system directories or directly on the system drive. The problem is only writing to the file, not reading it. If possible, you can try to move the MMCOLLECTION file to another location.
This problem usually affects more complex files. You may find that another program you are using is preventing you from working with the file. Closing other programs should help. If the error persists after closing other programs, wait for a while. However, some background programs may block the MMCOLLECTION file while scanning. If nothing helps, please reset the device.