Npoi.Mapper - excel file mapping hanged.

[darshana2000]

I have been working on excel file upload which consisting rows around 25k records.

1. File size is usually around 30 MB and upload failed due to mapper issue.
   Mapper mapper = new Mapper(stream3) = >//hanged- no error, no exception
2. But after the excel file opened and save as , then file size reduced to 20 and then upload success, No error in mapping.

Would like to know is there an workaround for this ?

Below image shows the code, which using to upload excel

[donnytian]

this seems an NPOI issue when reading the file. Sorry I don't have any workaround for now.