Good evening 
,
lion | excel 2011
excel freezes with autofit-command. without it'll runs with above changes for the file reference.
Here the save options for workbooks in excell 2011:
save workbook as v : Saves changes into a different file.
save workbook as workbook
[filename text] : A string that indicates the name of the file to be saved. You can include a full path. If you don't, Microsoft Excel saves the file in the current folder.
[file format CSV file format/CSV Mac file format/CSV MSDos file format/CSV Windows file format/DBF3 file format/DBF4 file format/DIF file format/Excel2 file format/Excel 2 east asian file format/Excel3 file format/Excel4 file format/Excel5 file format/Excel7 file format/Excel 4 workbook file format/international add in file format/international macro file format/workbook normal file format/SYLK file format/current platform text file format/text Mac file format/text MSDos file format/text printer file format/text windows file format/HTML file format/XML spreadsheet file format/PDF file format/Excel binary file format/Excel XML file format/macro enabled XML file format/macro enabled template file format/template file format/add in file format/Excel98to2004 file format/Excel98to2004 template file format/Excel98to2004 add in file format] : Specifies the file format to use when you save the file.
[password text] : A case-sensitive string, no more than 15 characters, that indicates the protection password to be given to the file.
[write reservation password text] : A string that indicates the write-reservation password for this file. If a file is saved with the password and the password isn't supplied when the file is opened, the file is opened as read-only.
[read only recommended boolean] : Set to true to display a message when the file is opened, recommending that the file be opened as read-only.
[create backup boolean] : Set to true to create a backup file.
[access mode exclusive/no change/shared] : Specifies the access mode for the new file.
[conflict resolution local session changes/other session changes/user resolution] : Specifies who conflict resolutions will be handled.
[add to most recently used list boolean] : Set to true to add this workbook to the list of recently used files. The default value is false.
[overwrite boolean] : Set to true to automatically overwrite an existing file.
_____
You may at least add a overwrite true at the end of the save command
Cheers
Hans