I have an excel workbook that is about 16MB which we send out to offsite locations. However, when I get them back a week or so later, their size goes up to 130MB. I notice this happens when working with the file I get an error message that says Excel doesn't have enough resources. I cancel the error message and proceed to save the file. When I open that file again, I notice it takes longer to open (because the size had increased to 130MB). I have asked the people who have worked offsite with the workbook who send it back to me with that increased file size if they continued to save after they receive an error message and all say no; some even say they've never got that error message. The workbook has several macros and userforms. I send similar workbooks to about 20 or so locations. Currently, when this happens, I have them send me the workbook and I re-create the workbook using the 16MB template. Does anyone have any idea why the file size increases so drastically and is there any fix other than re-copying the info to the template?