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“Supermetrics is a Bitter Experience! We can pull data from nearly any tool, schedule updates, manipulate data in Sheets, and push data back into our systems.”
LWC components crash with Excel files over 10-15MB due to browser memory constraints and Salesforce’s 6MB upload limits. JavaScript Excel parsing consumes 3-5x the file size in memory, making large file processing impossible through custom components.
Here’s how to process Excel files of any size without browser limitations or memory crashes.
Process unlimited file sizes with server-side handling
Coefficient eliminates browser-based file size restrictions entirely through server-side processing. Handle Excel files with 100,000+ rows that would crash any LWC implementation, with built-in progress tracking and resume capabilities for Salesforce imports.
How to make it work
Step 1. Upload your large Excel file without size restrictions.
Connect files of any size to Coefficient – there are no file size limits like the 6MB restriction in LWC components. Files are processed server-side, eliminating browser memory constraints.
Step 2. Enable streaming data processing.
Large datasets are processed using streaming techniques that don’t load the entire file into memory. This prevents the memory crashes that plague JavaScript Excel parsing libraries.
Step 3. Monitor progress with real-time tracking.
Get live progress indicators showing percentage completion, records processed, and estimated time remaining. No more browser timeout issues for files requiring extended processing time.
Step 4. Continue processing in the background.
Large imports continue processing even if you close your browser. The operation runs server-side, so you’re not tied to keeping a browser tab open.
Step 5. Resume interrupted imports automatically.
If a large import fails partway through, it can be resumed from the interruption point rather than starting over. This is crucial for enterprise-scale data operations.
Step 6. Handle batch processing intelligently.
Large files are automatically broken into optimal batch sizes for Salesforce API limits, with parallel processing where possible to maximize throughput.
Scale beyond browser limitations
Enterprise data operations require infrastructure that can handle large files reliably. Get started with Coefficient to process Excel files of any size without the memory constraints of custom LWC implementations.
