Can Guizhou Provincial Administration for Industry and Commerce find the internal files of enterprises in the whole province?

Of course. According to the information in the relevant official website, if you want to retrieve the internal files of the enterprise, you need a copy of the letter of introduction, business license and organization code of the unit for inquiry or entrust a lawyer to assist in retrieval. Some places need a notice of filing a case, and you can inquire about the internal files of your own unit. For specific information, please pay attention to official website for first-hand authoritative information.