Hello there! I am a beginner with Access 2007/2010 and so far I am enjoying very much what this particular DB program is capable of doing. I've been taught that when I get done developing a DB for someone else, I am to give the other party the DB with the file extension ACCDE. Here's where my confusion and frustration begin. Say the other party keeps the ACCDE file for a month and he/she enters all kinds of data. Afterwards, he/she comes to me and says, "Listen, I'd like you to modify this form and that form, this report and that report." Now, I find myself stuck with an ACCDB file that is a month outdated and needing modifications. How to resolve this issue? I hope this made sense. Thank you so very much. Jose