S
SpreadsheetSlayerLevel 2
Seoul, KR Member since Nov 2022

I will build a CSV and Excel import and export feature for your web app

4.8 (1,123 reviews)5,600 orders completed4-day delivery

About this gig

Full-featured CSV/Excel import with column mapping, validation errors, progress tracking, and export with custom formatting. Handles 100k+ rows.

csvexcelimport-exportnodejsdata-processing

About the seller

S
SpreadsheetSlayerLevel 2
4.8 (1,123 reviews)

Full-stack developer specializing in e-commerce and SaaS platforms. Built 80+ web applications since 2014. I write clean, tested code with proper documentation because future-you will thank me.

From Seoul, KR
Member since Nov 2022
Avg. response within an hour
Last delivery about 1 hour ago
Languages: English, German
Total earnings $332,810+
99%
Completion rate
94%
On-time delivery
54%
Repeat clients

Recent reviews

M
Marcus T.
1 week ago

My Upwork freelancer found this site and sent me a very angry email. Then he used it too.

S
Sophie W.
3 days ago

Came here as a joke, left with genuinely useful web development output. 10/10 plot twist.

P
Priya N.
1 month ago

Showed this to my team and we cancelled two vendor contracts the same day. Not even joking.

Order Summary

Review your order details

Service$249
Service fee$12
Processing$7
Total
$268$0

No payment needed. No account required.

Satisfaction guaranteed
Free means you literally can't lose money.
S
SpreadsheetSlayer
4.8
Response timewithin an hour
Last deliveryabout 1 hour ago
FromSeoul, KR