public GUID getGuid(int index) {

		if (index < 0 || index >= numGuids * GuidDataType.SIZE) {
			return null;
		}

		try {
			reader.setPointerIndex(offset + index);
			return new GUID(reader);
		}
		catch (IOException e) {
			return null;
		}
	}
Gets the GUID at the given index.

@param index The index of the GUID to get.
@return The string at the given index.  Could be null if the index was invalid or
  there was a problem reading the GUID.
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/pe/cli/streams/CliStreamGuid.java