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GemBox.Spreadsheet
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Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
GemBox.Spreadsheet .NET Excel Library
Table of Contents
GemBox.Spreadsheet - 2026 Pricing, Features, Reviews & Alternatives
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Last updated: September 2026
GemBox.Spreadsheet overview
What is GemBox.Spreadsheet?
GemBox.Spreadsheet is a .NET library that enables you to read, write, convert, and print XLSX, XLS, XLSB, CSV, HTML, and ODS spreadsheets from .NET applications.
Doesn't depend on Microsoft Excel.
Read and write 1,000,000 rows with less than 256MB RAM and less than 3.5 seconds.
Use a single programming interface for multiple file formats. Work with a physical file or with an in-memory stream.
Create and manipulate Excel files in C# or VB.NET with simple APIs for cells, rows, columns, worksheets, and other Excel objects.
Move data from and to an Excel file, prepare worksheets, and calculate formulas. The built-in calculation engine supports iterative calculations, named range references, external references, array formulas, and other advanced features.
High quality rendering and printing. Digitally sign and encrypt XLSX files as well as PDFs. Write, sheet and workbook protection - all done programmatically.
100% managed code (C#). Follows .NET class library design guidelines.
No server or OEM licenses. Unlimited deployments. 30-day money-back guarantee.
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GemBox.Spreadsheet’s user interface
GemBox.Spreadsheet reviews
Overall rating
5.0
/5
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Positive reviews
100
%
- Value for money
- Ease of use
- Features
- Customer support
- Likelihood to recommend1.00/10
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GemBox.Spreadsheet's key features
Most critical features, based on insights from GemBox.Spreadsheet users:
All GemBox.Spreadsheet features
Features rating:
GemBox.Spreadsheet alternatives
GemBox.Spreadsheet
Starting from
890
One-time payment
Jet Reports
Starting from
No pricing info
Smartsheet
Starting from
9
/user
Per month
Microsoft Excel
Starting from
6
/user
Per month
GemBox.Spreadsheet pricing
Pricing plans
Pricing details:
User opinions about GemBox.Spreadsheet price and value
Value for money rating:
GemBox.Spreadsheet integrations (1)
Top integrations
GemBox.Spreadsheet support options
Typical customers
Platforms supported
Support options
GemBox.Spreadsheet FAQs
Q. What level of support does GemBox.Spreadsheet offer?
GemBox.Spreadsheet offers the following support options:
Email/Help Desk, FAQs/Forum, Knowledge Base