# IO Utilities (`pydicom.fileutil`)

Utilities for dataset I/O.

`absorb_delimiter_item`(fp, is_little_endian, ...) | Read (and ignore) undefined length sequence or item terminators.
`find_bytes`(fp, bytes_to_find[, read_size, ...]) | Read in the file until a specific byte sequence found.
`find_delimiter`(fp, delimiter, is_little_endian) | Return file position where 4-byte delimiter is located.
`length_of_undefined_length`(fp, delimiter, ...) | Search through the file to find the delimiter and return the length of the data element.
`read_undefined_length_value`(fp, ...[, ...]) | Read until delimiter_tag and return the value up to that point.