If a customer is having issued with uploading CSV files,
try uploading one yourself
format being 3 columns, (PART - Blank - QUANTITY)
put a part number and a quantity in the relevant columns
save the excel file as a .CSV and upload it to the website, if this works then we know
the functionality is not affected, therefore there must be some issue with the customer's
CSV file, perhaps a typo in the Part number column
for example - 08187V2 must use a capital V, it can't be 08187v2 with a lowercase V