# LOF Function

#### Purpose:

To return the length (number of bytes) allocated to the file.

#### Syntax:

    LOF(file number)

#### Comments:

file number is the number of the file that the file was opened under.

With communications files, LOF returns the amount of free space in the input buffers.

#### Examples:

The following sequence gets the last record of the random-access file file.big, and assumes that the file was created with a default record length of 128 bytes:

    10 OPEN "R",1,"FILE.BIG"
    20 GET #1,LOF(1)/128
    .
    .
    .