The following limits affect file size in general: 
               
                  
                  - 32-bit Windows platforms impose a file size limit of 4 Gbytes. 
- 64-bit Windows platforms allow for very large file sizes. 
- Some UNIX platforms impose a file size limit of 2 Gbytes. 
Note: Even on UNIX platforms that support larger file sizes, the default kernel settings  frequently impose a 2 Gbyte limit.