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You can save VIs, project libraries, and LabVIEW projects for a previous version of LabVIEW to make upgrading LabVIEW convenient and to help you maintain files in two versions of LabVIEW when necessary.

Complete the following steps to save a hierarchy of VIs, project library, or LabVIEW project for a previous version of LabVIEW.

1. For the top-level VI in a hierarchy of VIs, select File»Save for Previous Version to display the Save for Previous Version dialog box. For a LabVIEW project, select File»Save for Previous Version in the Project Explorer window. For a project library, right-click the library file in the Project Explorer window and select Save for Previous Version from the shortcut menu or open the project library and select File»Save for Previous Version.
2. Select the version of LabVIEW for which to save the VIs, LabVIEW project, or project library from the LabVIEW Version pull-down menu.

Note  When you save a VI hierarchy, LabVIEW project, or project library that uses a LabVIEW toolkit that has provided LabVIEW with a list of version information, you can select which version of the toolkit to save for in the Toolkit Version field.

3. Click the Save button to display a file dialog box.
4. Select the directory where you want to save the VI hierarchy, LabVIEW project, or project library.
5. Click the Save button.

If a VI, LabVIEW project, or project library uses functionality that is not available in the previous version, LabVIEW saves as much as it can and produces a report of what it could not convert. The report appears immediately in the Warnings dialog box.

Note  You cannot save any VIs in vi.lib for a previous version of LabVIEW, so those VIs appear in the Warnings dialog box.

Click the Save to File button to save the warnings to a text file you can review later or click the OK button to acknowledge these warnings and close the dialog box.

You also can use the Save For Previous method to save a VI for a previous version of LabVIEW programmatically, the Save For Previous (Project) method to save a LabVIEW project for a previous version of LabVIEW programmatically, and the Save For Previous (Library) method to save a project library for a previous version of LabVIEW programmatically.