Opening a worksheet To work on a worksheet that you saved before, choose Open from the File menu.Mathcad prompts you for a name by displaying the Open dialog box. You can locate and open a Mathcad worksheet from other directories or drives just as you would in any other Windows application. At the bottom of the File menu, Mathcad maintains a list of the most recently opened worksheets. You can bypass the Open dialog box by choosing from this list.
Opening a worksheet stored on the World Wide Web
If you are connected to the Internet and know the address of a Mathcad worksheet on a World Wide Web server, you can open it using the URL (Uniform Resource Locator) text box in the Collaboratory:
• Choose Collaboratory from the File menu to open the Collaboratory dialog box.
• Select the text that is in the URL text box at the bottom of the dialog box and press [Del] to delete it.
• Type the URL of the worksheet you want to open in the URL text box. This identifies the name of the server computer on which the worksheet is saved together with the path to that worksheet within that computer’s file system. MathSoft maintains a collection of linked Mathcad worksheets on its World Wide Web server. To access these, choose Resource Center from the Help menu and click on “Web Library.” For more information about Internet access, the Collaboratory, and the’R;source Center, see Chapter 2, “On-line Resources.”
Editing a worksheet
Edit a worksheet by opening it by using Open from the File menu and then making any changes you choose. Then, to overwrite the original worksheet with the revised one, choose Save. Mathcad overwrites the original copy of the worksheet with the new copy that is currently shown in the worksheet window. To make changes to an existing worksheet without modifying the original, choose Save As from the File menu instead. You will be prompted for a new name under which to save the worksheet.
Modifying a template
To modify an existing worksheet template,
• Choose Open from the File menu.
• In the “Files of type” drop-down list, select “Mathcad Template.”
• Type the name of the template in the “File name” box, or browse to locate it in the dialog box. Worksheet templates are saved by default in the template sub directory.
• Click “Open.” The template opens in the Mathcad window. You may now edit the template as you would modify any Mathcad worksheet. To save your changes under the current template name, choose Save from the File menu. If you wanted to give a new name to the modified template, choose Save As from the File menu in read and enter a new name for the template in the dialog box. Note that when you modify a template, your changes will affect only new files created from the modified template. The changes will not affect any worksheets created with the template before the template was modified. Saving your worksheet in RTF format In addition to saving Mathcad worksheets and templates, Mathcad can save your entire worksheet in RTF format so that a word processor capable of reading an RTF file with embedded graphics might be able to open it. To do so:
• Scroll to the bottom of your worksheet to update all calculated results.
• Choose Save As from the File menu.
• In the Save As dialog box, choose “Rich Text Format Files” from the “Save as type” drop-down list.
• Enter a file name and then click “Save.” When you open this RTF file with a word processor such as Microsoft Word, you’ll find all the Mathcad regions lined up one above the other at the left edge of the document. You can then use your word processor to move these regions wherever you want to Once the Mathcad regions saved in an RTF file have been loaded into a word processor, you’ll no longer be able to edit equations and graphs-these will display as embedded graphics in your word processor. You will, however, still be able to edit the text. To embed Mathcad worksheets or regions in a word processing document in a form that allows you to continue to edit the original Mathcad worksheets, see the section “Using OLE” on page 91.
Saving a worksheet as a Mathcad 6 file
In general, Mathcad worksheets are upwardly but not downward compatible. That is, worksheets created in an earlier version of Mathcad will open in the current version, but files created in the current version of Mathcad will not open in earlier versions. Mathcad 7, however, allows you to save a worksheet as a Mathcad 6 worksheet so that it will open in Mathcad version 6 for Windows or Macintosh. The caveat, of course, is that features in your worksheet new to Mathcad 7 will not be recognized in Mathcad 6. Regions or features that won’t work in Mathcad 6 are rendered as bitmaps. To save a worksheet as a Mathcad 6 worksheet:
• Choose Save or Save As from the File menu.
• In the “Save as type” drop-down list, select “Mathcad 6 Files” and provide a file name.
• Click “Save” A message will appear warning you that certain features available .only in Mathcad 7 will not work in Mathcad 6. When you open a Mathcad 7 worksheet saved as a Mathcad 6 file in Mathcad 6 for Windows or Macintosh, you may see an additional warning indicating that certain features are not supported. For a list of product features, including features that are new in Mathcad 7, see “Mathcad features” on page 2.