PHPExcel classes

The following markers were found:

- todo 19
- fixme 10

### PHPExcel\Calculation\LookupRef.php1

Type | Line | Description
--- | --- | ---
todo | 280 | Support for the optional a1 parameter introduced in Excel 2010

### PHPExcel\Calculation\Statistical.php3

Type | Line | Description
--- | --- | ---
todo | 962 | Cumulative distribution function
todo | 1311 | Warning. This implementation differs from the algorithm detailed on the MS web site in that $CumPGuessMinus1 = $CumPGuess - 1 rather than $CumPGuess - $PGuess This eliminates a potential endless loop error, but may have an adverse affect on the accuracy of the function (although all my tests have so far returned correct results).
todo | 2060 | Try implementing P J Acklam's refinement algorithm for greater accuracy if I can get my head round the mathematics (as described at) http://home.online.no/~pjacklam/notes/invnorm/

### PHPExcel\Cell\DataType.php1

Type | Line | Description
--- | --- | ---
todo | 92 | Sanitize Rich-Text string (max. character count is 32,767)

### PHPExcel\Reader\Excel2007.php3

Type | Line | Description
--- | --- | ---
todo | 1422 | Autoshapes from twoCellAnchors!
fixme | 1601 | what if sheetname contains comma?
fixme | 1604 | what if sheetname contains exclamation mark?

### PHPExcel\Reader\Excel5.php8

Type | Line | Description
--- | --- | ---
fixme | 1000 | what if sheetname contains comma?
fixme | 1008 | what if sheetname contains exclamation mark?
fixme | 1035 | what if sheetname contains comma?
todo | 1088 | Provide support for named values
fixme | 4278 | set $firstVisibleRow and $firstVisibleColumn
todo | 4862 | Investigate structure for .xls SHEETLAYOUT record as saved by MS Office Excel 2007
todo | 6220 | if cell range is just a single cell, should this funciton
todo | 6394 | external sheet support

### PHPExcel\Reader\HTML.php3

Type | Line | Description
--- | --- | ---
todo | 202 |
todo | 217 |
todo | 233 |

### PHPExcel\Writer\Excel5\Parser.php7

Type | Line | Description
--- | --- | ---
todo | 566 | use real error codes
todo | 641 | possible class value 0,1,2 check Formula.pm
todo | 646 | use real error codes
todo | 662 | use real error codes
todo | 734 | use real error codes
fixme | 982 | maximum possible value for Excel 5 (change this!!!)
fixme | 984 | this changes for BIFF8

### PHPExcel\Writer\Excel5\Workbook.php1

Type | Line | Description
--- | --- | ---
fixme | 975 | only using internal SUPBOOK record

### PHPExcel\Writer\Excel5\Worksheet.php1

Type | Line | Description
--- | --- | ---
fixme | 1330 | !!!

### PHPExcel\Writer\HTML.php1

Type | Line | Description
--- | --- | ---
todo | 1502 | Same for columns