See the attached document on how to upgrade a Measure 4.0 SCT to a Measure X SCT.
Click here to download: Measure File Upgrade Method Sheet
NOTE 1: If a failure during upgrading occurs, double check to make sure the files aren't usable. In some cases, the message reports incorrectly and the files are perfectly usable in Measure X. You can check if they're usable by going to File > Learn/Execute > Execute Only and see what files successfully translated.
NOTE 2: If you have tried unsuccessfully to upgrade a SCT file, try re-opening the file back in Measure 4.0 (preferably 184.108.40.206), then going to File > Open, highlight the program, then push DUPLICATE. Duplicate the program and try upgrading that particular duplicate file. This has proven to work in the past.
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