I have been using Spreadsheet::XLSX for a while with no problem but have now hit a problem with reading a large (10M) xlsx file. (Mac OS Yosemite)

The error I get is

IO error: opening MasterCopies/BigFile.xlsx
 for read : No such file or directory 
 at /Library/Perl/5.18/Archive/Zip/Archive.pm line 563.
    Archive::Zip::Archive::read('Archive::Zip::Archive=HASH(0x7fcbea80
+7328)', 'MasterCopies/BigFile.xlsx\x{a}') called at /Library/Perl/5.1
+8/Spreadsheet/XLSX.pm line 33
[download]

Any suggestions as to how to fix this? The size of the file may be irrelevant but can't see any other difference from previous successful usage.