This documentation is archived and is not being maintained.

FileLen Function

Returns a Long value specifying the length of a file in bytes.

Public Function FileLen(ByVal PathName As String) As Long


Required. String expression that specifies a file. PathName may include the directory or folder, and the drive.


Exception type Error number Condition
FileNotFoundException 53 File does not exist.


If the specified file is open when the FileLen function is called, the value returned represents the size of the file at the time it was opened.

Note   To obtain the current length of an open file, use the LOF function.


This example uses the FileLen function to return the length of a file in bytes. For purposes of this example, assume that TESTFILE is a file containing some data.

Dim MySize As Long
MySize = FileLen("TESTFILE")   ' Returns file length (bytes).

Smart Device Developer Notes

This function is not supported.


Namespace: Microsoft.VisualBasic

Module: FileSystem

Assembly: Microsoft Visual Basic .NET Runtime (in MicrosoftVisualBasic.dll)

See Also

FileDateTime Function | GetAttr Function | LOF Function | FileNotFoundException Class