Knowledge detail

What can I do if ZWCAD failed to open the drawing?

Q: ZWCAD failed to open one of my drawing files.
A: Instead of double-clicking the file to open it, try opening it through ZWCAD’s File menu: select Open, If the problem occurs only when you double-click the file name, then the problem is due to the manner in which Windows registers file extensions.

If the problem still happens when you attempt to open files from ZWCAD’s menu, then try the following solutions:
1.      The version of the drawing file may be higher than the version of the ZWCAD program you are using. For example, if you use ZWCAD 2009 to open a drawing file whose format is AutoCAD 2010, then you will get message illustrated below: “Error: I. Unable to open the requested file. Only drawing version 2.5 and higher are supported.” These drawing files cannot be opened by ZWCAD.

 2.      If the version is not the problem, then the audit and recover functions may be of help. When a drawing file is damaged, it may be possible to recover some or all of the data by using the following commands that find and correct errors.
 (1) Audit command:
From ZWCAD’s File menu, choose Drawing Utilities, and then Audit
This command reads the drawing file, and then provides a report on the state of the file, such as whether errors exist in the file’s content.
 (2) Recover command:
From ZWCAD’s File menu, choose Drawing Utilities, and then Recover
This command recovers damaged drawing files in DWG format only; DXF files can be recovering only after they are opened.

3.      Sometime a problem may occur when the name of the file conflicts with the regional language of the Windows operation system. The solution is to change the name of the file to a number or to a name using letters from the English alphabet.