Question about PC Desktops
Most CAD programs such as AutoCad have a history of recently opened files. In AutoCad go to TOOLS/ OPTIONS/ FILES/ Automatic Save location. There you should find a file with the same name but a different file extension such as .BAK (AutoCad back-up) You can set AutoCad to automatically save to any time period, such as every 15 minutes.
Make a copy of this .BAK file so you keep that unchanged, Then change the file extension of the copied .BAK file to .DWG. Then you should be able to open this file. A file with an extension containing the $ symbol needs to be recovered using the programs recovery tool, in FILE/ DRAWING UTILITES/ RECOVER
If you're using a different CAD program look for this backup file wherever the programs Autosave files are set to be stored.
One other possiblity is the file extesnsion is set by your computer to open with another program for some reason. Right click and hit "open with"
Let me know if this helps
Posted on Jan 07, 2009
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