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Have you ever seen a drawing file you created with Civil 3D balloon in file size? Has this caused performance to take a nose dive? The following steps should help you get some improvement on getting smaller file size, and hopefully better performance: 1. Run an audit. An audit will detect errors and allow you to fix those errors. Sometimes files can become corrupted and contain things that will cause issues. Running an audit will help with this. 2. Run a “-PURGE”. A what, you ask? I know what a purge is, but what is a “-PURGE”? -PURGE gives you a few options that the purge dialog box does not; namely, the REGAPPS option. REGAPPS are registered applications that essentially bloat a drawing and cause performance issues. While even Civil 3D creates regaaps, having a large number of them (more than 30 or so) can start to cause issues. I was in a DWG file the other day and when I ran this it came up with over 100,000 REGAPPS in the file! Check out the figure below to see just how many!     3. Finally, run a regular purge to see if anything else can be purged out. If the option to “purge out zero length objects and empty text objects” is not grayed out, check it on. This is another thing that even though you may not be able to see them, they can exist and cause issues. Check out the figure below that shows this option grayed out as well as the new purge orphaned data option.     Try these steps out and see if it helps. I have seen file sizes reduced by as much as 75% by following these steps. -Written by ATG Technical Specialist Justin DeVore   Applied Technology Group is a Platinum Autodesk Business Partner. Founded in North Little Rock, Ark., in 1992 as a local computer services company, ATG has grown to become a leading design technology partner with the purpose of assisting customers in maximizing the value and adoption of advanced technologies so they can perform competitively in the AEC sector. ATG collaborates with customers across the Gulf South, Midwest and Southwest through partnerships with 3DR, Autodesk, Leica, Microsoft and Panzura. Learn more about our company at www.atgusa.com. Autodesk and the Autodesk logo are registered trademarks or trademarks of Autodesk, Inc., and/or its subsidiaries and/or affiliates in the USA and/or other countries.

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