ATR file format description
Many people share .atr files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .atr file can be edited, converted or printed with. On this page, we try to provide assistance for handling .atr files.
3 filename extension(s) found in our database.
.atr - SIO2PC Atari Disk Image
The ATR disk image files are related to SIO2PC. ATR file is an SIO2PC Atari Disk Image. SIO2PC is a hardware interface and software utility package to allow storage of your Atari files on your PC's hard and floppy disks, file conversions in both directions, and Atari printer output redirection to your PC's printer, screen, or file.
- Disk Image files
- - / -
- SIO2PC Atari Disk Image related extensions:
.atr - Lightscape Material File
The ATR data files are related to Autodesk Lightscape. ATR file is a Lightscape Material File. Autodesk Lightscape is a visualization application that uses radiosity and ray tracing to create accurate lighting for 3D models.
- Autodesk Lightscape
- Data files
- - / -
- Lightscape Material File related extensions:
.atr - PhysioBank Annotation File
The ATR data files are related to PhysioBank. ATR file is a PhysioBank Annotation File. PhysioBank is a large and growing archive of well-characterized digital recordings of physiologic signals and related data for use by the biomedical research community.
Naturally, other applications may also use the .atr file extension. Even harmful programs can create .atr files. Be especially cautious with .atr files coming from an unknown source!
Can't open a .atr 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 .atr file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
afr, agr, att, xtr, tr, qtr, atg, ate, art, ar, ztr, wtr, tar, atf, atd
Is it possible that the filename extension is misspelled?
Similar file extensions in our database:
- Arachni Framework Report
- AT&T Group 4 Bitmap Image
- ESRI ArcGIS Ascii Grid
- Alphacam Lathe Tool Data
- Grace Project
- C64 Advanced Art Studio Image
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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