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http://www.openoffice.org/issues/show_bug.cgi?id=116383
                 Issue #|116383
                 Summary|Inconsistent treatment of zero-length string
               Component|Spreadsheet
                 Version|OOo 3.2.1
                Platform|PC
                     URL|
              OS/Version|Windows 7
                  Status|UNCONFIRMED
       Status whiteboard|
                Keywords|
              Resolution|
              Issue type|DEFECT
                Priority|P3
            Subcomponent|open-import
             Assigned to|spreadsheet
             Reported by|sjmachin





------- Additional comments from [email protected] Sun Jan  9 22:14:57 
+0000 2011 -------
(a) Importing an Excel XLSX or XLS file that contains a zero-length string:

If cell is a zero-length string result of a formula (simplest example: =""), it
works OK: COUNTA(cell) -> 1, ISBLANK(cell) -> FALSE, ISTEXT(cell) -> TRUE.

However if cell is not the result of a formula (e.g. entered manually in Excel
UI by typing '<Enter> or by copy a formula and Paste Special without formula),
it treats it like a blank/empty cell: COUNTA(cell) -> 0, ISBLANK(cell) -> TRUE,
ISTEXT(cell) -> FALSE.

(b) There appears to be no way of manually entering a non-formula zero-length
string through the Calc UI: 

(b1) Typing '<Enter> results in a 1-length string containing the apostrophe.

(b2) Copy a cell with ="" formula and Paste Special (no formula) results in a
blank/empty cell.

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