Edit multiple links in ppt

Hi Echo S, thank you so much for your answer, you solved my big problem.

Now I have another problem with the link between pptx and xlsx. I want

to link about 80 charts from excel to ppt. But when I read the paths

there isn't the difference between ones and the other, in fact when I

open the pptx and push on upload now, the charts became all egual. The

only way that I found is to creat 80 different sheets on excel, so the

paths will be all different. You can understand that this is impossible

because the charts will increase.

Could you help me to solve this big problem?

Thank you in advance