How to convert XLSX to JPG

How to Convert an XLSX File to a JPG Image

Sheetize provides a simple, high‑performance API that lets you turn an Excel workbook (.xlsx) into a high‑quality JPG picture. This is ideal for generating thumbnails, embedding spreadsheets in web pages, or creating visual reports without exposing the original data.

Why Use Sheetize for XLSX‑to‑JPG Conversion?

  • Full fidelity – preserves cell formatting, colors, charts, and images.
  • Fast & scalable – optimized for .NET, works on Windows, macOS, and Linux.
  • Customizable resolution – set horizontal and vertical DPI to match your needs.
  • Zero‑dependency – no external tools or Office installations required.

Getting Started

Add the Sheetize.ImageConverter package to your .NET project (via NuGet) and call the ImageConverter.Process method.

Sample C# Code 

using Sheetize;

var loadOptions = new LoadOptions
{
// Path to the source XLSX file
InputFile = @"D:\Reports\Financials.xlsx"
};

var saveOptions = new ImageSaveOptions
{
// Desired output file – JPG extension selects the JPEG format
OutputFile = @"D:\Reports\Financials.jpg",

// Optional: control image resolution (DPI)
HorizontalResolution = 150,
VerticalResolution = 150,

// Optional: JPEG compression quality (0‑100)
// Quality = 90
};

ImageConverter.Process(loadOptions, saveOptions);

The snippet loads Financials.xlsx and writes Financials.jpg using the specified resolution (and optional quality setting).

Key Options for JPG Output

  • HorizontalResolution / VerticalResolution – define the DPI; higher values produce clearer images at the cost of larger file size.
  • Quality (if supported) – JPEG compression quality from 0 (max compression) to 100 (best quality).

Best Practices

  1. Use at least 150 DPI for printable graphics; 72 DPI is enough for web thumbnails.
  2. If the workbook contains large charts, increase DPI to avoid pixelation.
  3. Open the generated JPG in an image viewer to verify appearance before distribution.
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