Can I identify numbers 2.3 vs 3.0 files?

Question

I'm trying to find Numbers files that have been converted to 3.x so I can try and export back to numbers 2.3.  Don't want to randomly open files in 3.0 as I may lose functionality if the file is still in Numbers 2.3 format.  Is there a way to determine a file's application version and if so possibly programatically via applescript?
I would need to do the same for Pages & Keynote as well.
Thanks for any feedback.

Answer 1

Hello
You might try the following AppleScript script which is a mere wrapper of shell script. Run the script, choose the directory when asked where to start scanning and it will yield a time-stamped text file containing found paths under the specified directory on desktop. If you're scanning somewhere admin privileges are required, set the variable admin to true at the beginning of script.
This script is scanning *.pages, *.numbers and *.key files / packages under specified directory and list those which have Index.zip file in zip archive or package. I'm not sure about the validity of this criterion, for I don't use any of iWork'13 applications myself. Just based upon the description in the following web page:
https://github.com/obriensp/iWorkFileFormat/blob/master/Docs/index.md
    list files or packages with name *.pages, *.numbers or *.key which contain Index.zip file.
    * output is save in ~/desktop/iwork13_files_YYYYMMDD_HH.MM.SS.txt
set admin to false
set dir to (choose folder)'s POSIX path
if dir ends with "/" then set dir to dir's text 1 thru -2
do shell script "/bin/bash -s <<'EOF' -- " & dir's quoted form & "
    printf \"# scanning iwork'13 files under $1\\n\"
    while read -d $'\\0' f
    do
        # for f = package
        [[ -d \"$f\" ]] && [[ -e \"$f/Index.zip\" ]] && echo \"$f\" && continue
        # for f = zip archive
        [[ -f \"$f\" ]] && [[ -n $(unzip -ql \"$f\" 2>/dev/null | grep Index.zip) ]] && echo \"$f\"
    done < <(find -E \"$1\" -iregex '.*/.*\\.(pages|numbers|key)$' -print0)
    printf \"# done\\n\"
} > ~/desktop/$(date +'iwork13_files_%F_%H.%M.%S.txt')
EOF" administrator privileges admin
Hope this may help,
H
Message was edited by: Hiroto (refined usage explanation and iregex pattern)