What problem is solved by using a script?
When manually converting files, (You are converting FileMaker files from an older to a newer version?), you can resolve this issue by selecting and opening all three files at the same time.
It's taking info from an older system (fp7) and until I put the new system inlace, I need to convert these info files on a regular basis to get the latest info as I develop. A script just makes it quicker by button-pushing when I need
I think setting up the script will take longer than doing this by hand. You simply do this:
a) Open FileMaker 13
b) Pull down the File Menu and select "Open"
c) find your files, select them as a group and click Open