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in reply to Re^2: install cpan Win32::OLE on cygwin - t/3_ole.t ....... 1/58 OLE exception from "Microsoft Excel":
in thread install cpan Win32::OLE on cygwin - t/3_ole.t ....... 1/58 OLE exception from "Microsoft Excel":

Microsoft Excel cannot open or save any more documents because there is not enough available memory or disk space. -> Microsoft Excel cannot open or save any more documents because there - Microsoft Community
The solution is Right Click -> Properties of Excel File -> Client on Unblock.
empty cache directory, remove size limits from cache directory, enter valid path for cache directory (TEMP)
KHCU...UserShell...Cache ....

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Re^4: install cpan Win32::OLE on cygwin - t/3_ole.t ....... 1/58 OLE exception from "Microsoft Excel":
by Anonymous Monk on Aug 01, 2013 at 14:03 UTC
    Cleaned the TEMP directory (78Mbyte)

    Path is set correctly

    The Unblock suggestion is premature becuase the script tries to create a workbook. I don't understand enough to decide whether the script is still getting to set up the create call or is actually doing the call to create the file and cannot. I suspect the latter.

    The Unblock suggestion made me think that maybe some security setting prohibits the creation of a file on the file system from a script? What could that be?

    Thanks for the thought.

      What could that be?

      Don't know, there are other threads linked about this not uncommon error -- even some kb articles -- check the eventviewer maybe?