MDW files are used by the database program Microsoft Access. More specifically, they are Workgroup Information files, often shortened to WIF, though that shouldn’t be confused with the file extension. This type of file keeps usernames and passwords for users that have access to a particular database. Closely related to the MDB filetype, MDW files are needed to authenticate a login.
How can you open MDW files?
The proper way to open these files is, of course, Microsoft Access. In rare cases, Access might not be able to open them – other programs can also use the extension to hold information, however not the kind that would be compatible with Access databases. In addition to Access, these text files can also be opened with text editors.
What programs work with MDW files?
All versions of Microsoft Access should be able to open this file. Text editors like Sublime Text or Notepad ++ can also open these files. Be careful when editing these files – mistakes can affect users’ ability to open the database the MDW belongs to.