| Item | Description |
| DisableWaitLocks() | Toggles the exclusive file opening mode. |
| FClose() | Closes a binary file. |
| FCreate() | Creates an empty binary file. |
| FErase() | Deletes a file from disk. |
| FError() | Retrieves the error code of the last low-level file operation. |
| FileAppend() | Concatenates two files. |
| FileAttr() | Returns the attributes of a file. |
| FileCClose() | Closes the file opened in backup mode with FileCopy(). |
| FileCCont() | Continues file copying in backup mode of FileCopy(). |
| FileCOpen() | Tests if the file opened in backup mode with FileCopy() is still open. |
| FileCopy() | Copies files normally or in backup mode. |
| FileDate() | Returns the date of a file. |
| FileDelete() | Deletes one or more files specified by a file mask and file attributes. |
| FileMove() | Moves a file to another directory. |
| FileSeek() | Seeks files specified by a file mask and file attributes. |
| FileSize() | Returns the size of a file. |
| FileStats() | Retrieves file information for a single file. |
| FileStr() | Reads a string from a file beginning at a specified offset. |
| FileTime() | Returns the change time of a file. |
| FileValid() | Tests if a string contains a valid file name. |
| FOpen() | Opens a file on the operating system level. |
| FRead() | Reads characters from a binary file into a memory variable. |
| FReadStr() | Reads characters up to Chr(0) from a binary file. |
| FRename() | Renames a file. |
| FSeek() | Changes the position of the file pointer. |
| FWrite() | Writes data to an open binary file. |
| HB_FCommit() | Forces a disk write. |
| HB_FCreate() | Creates and/or opens a binary file. |
| HB_FReadLine() | Extracts the next line from a text file. |
| HB_FSize() | Returns the size of a file in bytes. |
| HB_FTempCreate() | Creates and opens a temporary file. |
| HB_F_Eof() | Tests for End-of-file with binary files. |
| HB_OsError() | Returns the operating specific error code of the last low-level file operation. |
| SetFAttr() | Sets file attributes. |
| SetFCreate() | Sets the default file attribute(s) for creating files. |
| SetFDaTi() | Sets the last change date and time of a file. |
| StrFile() | Writes a string to a file starting at a specified position. |
