ASTM file format description

Many people share .astm files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .astm file can be edited, converted or printed with. On this page, we try to provide assistance for handling .astm files.

1 filename extension(s) found in our database.

.astm - Optitex 3D Suite ASTM Grading File

The ASTM data files are related to Optitex 3D Suite. ASTM file is an Optitex 3D Suite ASTM Grading File. The Optitex 3D Suite is a collection of applications that can create photorealistic 3D garments, fit them on a customizable avatar, and even animate them for presentations.

Application:

Optitex 3D Suite

Category:

Data files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

Optitex 3D Suite ASTM Grading File related extensions:

.grv: Microsoft Office Groove File
.mct: Live Messenger Content
.id2: Live Messenger Custom Emoticon Metadata
.cmax: CMax Circuit Data
.ntd: NinjaTrader Database
.np2: Nikon Picture Control v2 Data

Naturally, other applications may also use the .astm file extension. Even harmful programs can create .astm files. Be especially cautious with .astm files coming from an unknown source!

Can't open a .astm 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:

example.astm

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 .astm file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

actm, asm, ast, atm, stm

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

.actm: Autodesk AutoCAD Action Macro
.asm: PTC Creo Assembly Data
.stm: Microsoft Exchange Streaming Media File
.atm: Alphacam Lathe Param Macro
.ast: ActivTrak Session Track Data
.atm: Adobe Type Manager Data

Operating systems

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

If you find the information on this page useful, please feel free to link to this page.

https://datatypes.net/open-astm-files

If you have useful information about the .astm file format, then write to us!