problems with excel files

Hi everyone, i'm having troubles when i try to upload an excel file and try to open it with the "alafile" node. there are two instances, the first one is with the original file, that gets uploaded just fine, and then the second one (another file), that trhows the error in the link below. The problem is that if i "save as" the original file to the same name and without changes on the data inside, and then try to upload it the error comes up and node-red crashes.

here you have the flow that i'm using.

https://pastebin.com/9cCARxEz

if you need more data, just ask!

Greetings.

Andrés

Well the problem was mine, i was appending the new file to the old one, the solution is to overwrite the file.

Andrés