LOF function

Returns a Long representing the size, in bytes, of a file opened by using the Open statement.



The required filenumber argument is an Integer containing a valid file number.


Use the FileLen function to obtain the length of a file that is not open.


This example uses the LOF function to determine the size of an open file. This example assumes that TESTFILE is a text file containing sample data.

Dim FileLength
Open "TESTFILE" For Input As #1    ' Open file.
FileLength = LOF(1)    ' Get length of file.
Close #1    ' Close file.

See also

Support and feedback

Have questions or feedback about Office VBA or this documentation? Please see Office VBA support and feedback for guidance about the ways you can receive support and provide feedback.