What version of dwg with Notepad

[Maverick91]

"AC1018"

If I open a dwg with Notepad, that text is on the first line of characters. I know it tells what version of ACAD the drawing is. Is there a site that tells about this in more detail? Will it also tell what vertical (LDT, ADT, etc.) the file is?

[jaberwok]

AC1015 = A2000
AC1018 = A2004
AC1021 = A2007

I don't know why they've started going up in threes.

This only tells you the file format. I don't know of a way to tell if a vertical product was used.

[Wanderer]

the unofficial acad history page lists the version numbers... if that is correct, then 18 is 2004... don't know about verticals...

"AC1018"

If I open a dwg with Notepad, that text is on the first line of characters. I know it tells what version of ACAD the drawing is. Is there a site that tells about this in more detail? Will it also tell what vertical (LDT, ADT, etc.) the file is?

[Maverick91]

AC1015 = A2000
AC1018 = A2004
AC1021 = A2007

I don't know why they've started going up in threes.

This only tells you the file format. I don't know of a way to tell if a vertical product was used.

and I guess it only shows the file format, but not the software version, like ACAD2005 or 2006

[jaberwok]

You can make that -
AC1015 = A2000 A2000i A2002
AC1018 = A2004 A2005 A2006
AC1021 = A2007 ? ?

and AC1014 = R14.

[Opie]

I don't know why they've started going up in threes.

The number of ACAD versions between a DWG format change, probably.

[jaberwok]

The number of ACAD versions between a DWG format change, probably.

Yeah, maybe but they didn't do that in the past.
Still, we've had Version numbers, then Release numbers, now Year numbers so why not.

[jaberwok]

Yeah, maybe but they didn't do that in the past.
Still, we've had Version numbers, then Release numbers, now Year numbers so why not.

Come to think of it - that's probably rubbish and you're probably right (even though it's illogical).

The first time that a new release didn't involve a new file format was R12.

[Opie]

Come to think of it - that's probably rubbish and you're probably right (even though it's illogical).

The first time that a new release didn't involve a new file format was R12.

I was mainly refering to the three digit shift in the newer versions. I don't know much before r12. ~shrug~

[rkmcswain]

and I guess it only shows the file format, but not the software version, like ACAD2005 or 2006

I don't think the application used to create the file is stored in the DWG file, other than the encrytped data that Autodesk uses to identify it's own apps. http://www.evanyares.com/the-cad-ind...ill-we-do.html

Remember there are other applications beside AutoCAD that write DWG files, such as DWGTrueConvert, and any licensed applications using RealDWG - not to mention applications using the OpenDesign libraries.