DOS file format description
Many people share .dos files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .dos file can be edited, converted or printed with. On this page, we try to provide assistance for handling .dos files.
1 filename extension(s) found in our database.
.dos - Renamed MS-DOS System File
DOS file is a Renamed MS-DOS System file. DOS files are mirrors of the original BAT, SYS, COM files from your previous operating system. Windows 95 uses this file when you boot to your previous version of MS-DOS.
- Other files
- - / -
- Renamed MS-DOS System File related extensions:
Naturally, other applications may also use the .dos file extension. Even harmful programs can create .dos files. Be especially cautious with .dos files coming from an unknown source!
Can't open a .dos file?
When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:
Windows can't open this file:
To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.
To avoid this error, you need to set the file association correctly.
- Open Control Panel > Control Panel Home > Default Programs > Set Associations.
- Select a file type in the list and click Change Program.
The .dos file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
dox, os, cos, fos, dso, dps, doq, xos, doc, vos, dls, ros, dis, ods, eos
Is it possible that the filename extension is misspelled?
Similar file extensions in our database:
- Visual Basic ActiveX Document Binary Form
- Capture One Settings
- DAZ Studio ASCII Script
- Virtual Orchestra Studio Data
- Stata Batch File
- OpenDocument Spreadsheet
DataTypes.net currently supports the following operating systems:
Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android
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