The following table lists proprietary commercial software pieces that allow you to create mental and conceptual maps. There is no explicit guarantee for the license. Assistance for the duration of the licence is provided at NG LOGIC`s sole discretion and may be linked to the payment of additional fees. The license under this software license agreement begins for each NG LOGIC program on the date the key to the licensing of this NG LOGIC program was sent to the licensee. c. At the end of the software license agreement for an NG LOGIC program, the licensee and all other rights granted to the licensee with respect to this NG LOGIC program are immediately terminated and the licensee immediately refers this NG LOGIC program to NG LOGIC, including all documentation, manuals and copies relating to this NG LOGIC program; (ii) delete all copies of this NG LOGIC program and all parts of any media and storage device on which the licensee has placed or authorized this NG LOGIC program; and (iii) NG LOGIC, upon request, certifies in writing that the taker fulfils its obligations under this paragraph 12, point c). The .xmind file format for implementing XMind filing cabinets consists of a compressed zip archive containing an XML document for content, an XML document for format styles, an image file .png for thumbnails, and some directories for installations. The file format is open and is based on certain OpenDocument principles. Unless previously reported, as provided for in Section 12 (Termination), the licence of a regularly granted NG LOGIC program is continued until the end of the initial licence period, which is indicated in a licence supplement.