I've got a small Excel file I've tried to save to a diskette, but, after the one time out of many tries it finally did write it, it won't read when I try to look at it, gives me an error message, So, I saved it to a CD-RW, everything went okay, I can read it, but now when I want to update it, it says "Cannot save the file xxxxxx. The file exists and is marked read only. Save the file with another file name or another location." And a couple of times it told me I did not have rights to access this file. I'm the only one on this computer, and I'm listed as the administrator, so I don't understand that either. All I want to do is overwrite the file to update it every now and then. But I can't. I've always been able to do this on a diskette, but can't even do that now. Is it not possible to do this on a CD-RW? I don't want to write a new file every couple of days. The diskette would be fine if I could get it to work. Can anybody give me some advice? I'm just using what came on XP Home to burn disc's and always have, because I don't do any music coping and this has always worked fine up until now. Just did a reformat of my computer about three weeks ago, but I can't see why that would be a problem, I put it back just as it was to begin with. Thanks in advance for any help. And if this info is to be found somewhere else here at TS, I couldn't find it.