Regulations for Electronic Procurement Article 10

An entity may prescribe in the tender documentation the file format to be used by suppliers in electronic submission of tender or the format by which suppliers may print out the electronic tender documentation for use in preparing their tenders. However, where the file format or printing format adopted by a supplier does not affect reading, recognizing or use, the entity shall not reject it.The file format or printing format prescribed by an entity referred to in the preceding paragraph shall not restrain competition among suppliers.
中文原文 電子採購作業辦法第10條
機關得於招標文件中規定廠商電子投標使用之檔案格式,或廠商列印電子招標文件投標之格式。
但廠商之檔案格式或列印格式不影響讀取、辨識或使用者,機關不得拒絕。
前項機關規定之檔案格式或列印格式不應限制廠商之競爭。

English translation for reference only; the Chinese text prevails. Not legal advice.