File Extension Library


.M11 File Extension

  • Developer by: Microsoft Corporation
  • Category: Accounting, financial and tax Files

What are .M11 files and how to open them?

Can't open .M11 file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .M11 file.

What is a .M11 file extension?

.M11 file extension is created by Microsoft Corporation. .M11 has been classified as Accounting, financial and tax Files.

.M11 is Microsoft Money 2003 data

The m11 file extension is associated with Microsoft Money, a personal finance management software, developed by Microsoft Corporation.

The .mn1 to .m16 files are created after installation of a Microsoft Money new version. It is a part of the conversion process, it creates a backup copy of your unconverted file.

The file uses the relevant extension to the version it was last used in. These files are not required for Money to run, but you should be sure you will never revert to an older version of Money again before you delete them.

These files can be opened in the previous version of Money, not the mny file.

As of 2010, the product is officially discontinued and no longer supported by Microsoft.

.M11 file format is deprecated and this file format is no longer supported.

Currently, .M11 file type is not actively used and is obsolete. This usually happens with system files in older operating systems, files from long-discontinued software, or with previous versions of some file types (documents, projects, images, etc.) that were replaced in later versions of the original programs.


How to open:

Use Microsoft Money to open *.m11 data files.

How to convert:

Probably can be exported to other formats.

How to fix problems with .M11 files

  1. You need to update the application that you normally use to open .M11 files. Only the latest version of the software supports the current .M11 file format
  2. You need to check the .M11 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)