PHP-excel can not export variable with value of 254 length

[GoogleCodeExporter]

What steps will reproduce the problem?
1. XML format 
<proejctName>XYZ</projectName>
<details>Add any 254 characters length string here</details>
2. sendFile() function sends data to xls file, but when you open a file it show 
File Error: Data ma have been loss 

for 253 character long string it works perfectly well..

What is the expected output? What do you see instead?
Expected o/p show print 254 charastre string in xls


What version of the product are you using? On what operating system?
v1.1

Please provide any additional information below.

Original issue reported on code.google.com by P.Swap...@gmail.com on 27 Feb 2012 at 5:42

[GoogleCodeExporter]

Excepts 254 characters - does not work for 255 characters strnig - missed a 
white space. waiting for you input - thanks in advance.

Original comment by P.Swap...@gmail.com on 27 Feb 2012 at 6:11