Update XLSX dependency #258
Description
Hello.
I just noticed that the XLSX lib (on which you depend) hasn't been updated on npmjs.com since 4 years.
I first though it was simply not maintained anymore until I found out that it continued to evolve but was simply not published to npmjs.com anymore.
Why? I don't know.
On the top of the readme of the npm linked github, there is this announcement:
While the npmJS version is 0.18.5, the version on their new repo is 0.20.3
Here is the way to install the updated lib: https://docs.sheetjs.com/docs/getting-started/installation/frameworks/
It is recommended to "vendor" it: https://docs.sheetjs.com/docs/getting-started/installation/frameworks/#vendoring
You might want to update it as it might iron out some issues and also update this lib's codebase that otherwise hasn't moved since 4 years.