qck.hlp (Table of Contents; Topic list)
LOF Function
  Summary  Details  Example                Contents  Index  Back
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 Returns the size of an open file (bytes), the number of records in an ISAM
 table, or when used with the OPEN COM statement, the number of bytes free
 in the output buffer (ISAM available in Professional Edition only).
 
    LOF(filenumber%)
 
    ■ filenumber%       Number specifying an open file or ISAM table
 
 See Also
    EOF Function                     LEN Function
    LOC Function                     OPEN Statement (File I/O)