LDT photometric data files have the .ldt filename extension. In 1988 CIBSE introduced a photometric file format called TM14, but this need not detain us. The format has not caught on in the lighting industry and in our many years of experience, we have never known a customer ask for a TM14 file.
Generally a letter of intent is not a legally binding contract. It just lays out the terms of the agreement so that both parties can see if they agree with the terms and are ready to sign a contract. The best way to write a letter of intent is to be specific on each of the points of the agreement.
You've been asked to write a letter of recommendation. No easy task. What makes a recommendation letter good? Effective letters of recommendation have these 8 characteristics in common.