XLSX and XLS formats have significant differences when exporting from Lightning components. XLSX supports over 1 million rows and better compression, while XLS is limited to 65,536 rows but offers broader compatibility with legacy systems.
You’ll learn when to choose each format and how to avoid the JavaScript implementation complexity that makes format selection challenging in Lightning components.
Get automatic format optimization for Salesforce Excel exports using Coefficient
Coefficient intelligently selects the optimal Excel format based on your Salesforce data characteristics, eliminating the need to build format selection logic in Lightning components. It defaults to XLSX for modern compatibility while supporting XLS when needed for legacy system integration.
How to make it work
Step 1. Connect your Salesforce data source.
Import data from the same Salesforce objects or reports your Lightning component would access. Coefficient automatically analyzes your dataset size and complexity to determine the optimal format without requiring manual configuration.
Step 2. Configure format preferences.
Set your preferred Excel format based on your recipients’ needs. Choose XLSX for modern reporting with large datasets, or XLS when integrating with legacy systems that specifically require the older format. Coefficient handles the technical implementation automatically.
Step 3. Preserve Salesforce-specific formatting.
Both formats maintain proper currency symbols, date timezone handling, and lookup relationship names rather than IDs. Coefficient ensures picklist values and rich text fields export correctly regardless of format choice, eliminating the encoding issues common in Lightning component exports.
Step 4. Set up automated delivery.
Schedule exports in your chosen format with automatic delivery to stakeholders. This eliminates the need for users to understand format differences or make technical decisions about file compatibility.
Skip the format complexity entirely
Rather than building JavaScript logic to handle format selection and compatibility testing, Coefficient automatically optimizes Excel format based on your data and recipient requirements. Get started with Coefficient to eliminate format selection complexity while ensuring optimal compatibility for your Salesforce Excel exports.