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      <title>File Specifications</title>
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      <div class="title_topic2" id="xps10_pagetitle">File Specifications</div>
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      <p class="para_topic">File specifications are used in NX to create or access files. These file specifications include directory name, subdirectory names and filenames. The general format for a files specification is:</p>
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               <p class="para_th">O/S</p>
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               <p class="para_th">Format</p>
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               <p class="para_td">Unix</p>
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               <p class="para_td">/directory/subdirectory_1/subdirectory_2/filename.ext</p>
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               <p class="para_td">Windows</p>
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               <p class="para_td">&lt;drive&gt;:\directory\subdirectory_1\subdirectory_2\filename.ext \\system_name\directory\subdirectory_1\subdirectory_2\filename.ext</p>
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      </table><br><p class="para_topic">Where &lt;drive&gt; is replaced by the appropriate drive letter. Note that NX supports both the Windows local file specifications and UNC file specifications.</p>
      <p class="para_topic">The complete path to a given file can be up to 10 directory levels deep. If you supply only the filename, NX will assume the path is your current working directory.</p>
      <p class="para_topic">NX limits the maximum length of a filename or a directory name to 128 characters. For files, the limit of 128 characters is for both the name and the extension. The extension is always three characters, and must conform to the conventions specified in the section, File Types and Extensions. The period between the filename and the extension counts as a character, which leaves a total of 124 characters for the filename itself.</p>
      <p class="para_topic">Unix distinguishes between upper and lower case characters in file specifications. The user options section explains some options that can be used to deal with this.</p>
      <p class="para_topic">The full file specification cannot exceed 256 characters, however some functions require even shorter file specifications. Refer to the appropriate NX documentation to determine the proper file specification. As an example, interpart expressions are limited to a total of 128 characters, so the longer the part name is, the less room you have for the expression itself. </p>
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