I have an issue with a excel on office 2007 whereby the person has to change the name of the file each time, after making a change, or it will not allow him to open it. It give message ‘ the document was saved successfully but excel cannot reopen it because of a sharing violation. Please close the document and try to open it again. ‘ when trying to open after making a change if he does not change file name. have verified that it is not a shared document because when you go to review - share workbook, the allow changes by more than one user at same time is not checked . Also verified that it is independent of whether it’s saved at network or on desktop(happens at both places). I disabled and enabled the trend antivirus and it appeared to work for a while(I saved two different documents with changes as same name and it opened fine on both documents - even after av was re-enabled). But it seems to be happening again. Wondering if there is a third party program that could be doing this perhaps or a patch.