| Item | Description |
| DeleteFile() | Deletes a file with error handling. |
| DirMake() | Creates a directory. |
| DirName() | Returns the current directory. |
| DiskFormat() | Formats a floppy disk. |
| DiskFree() | Returns the free storage space of a disk drive in bytes. |
| DiskReady() | Test if a disk drive is ready. |
| DiskReadyW() | Tests if a drive can be written to. |
| DiskTotal() | Returns the totl storage space of a disk drive in bytes. |
| DiskUsed() | Returns the used storage space of a disk drive in bytes. |
| DriveType() | Determines the type of a drive. |
| 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. |
| 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. |
| FloppyType() | Determines the type of a floppy drive. |
| GetVolInfo() | Retrieves the volume label of a disk. |
| IsDir() | Checks if a character string contains the name of an existing directory. |
| NumDiskL() | Returns the number of logical drives. |
| RenameFile() | Renames a file and handles errors. |
| 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. |
| TrueName() | Completes a relative path to include the root directory. |
| VolSerial() | Returns the serial number of a disk drive. |
| Volume() | Sets the volume label of a disk. |
