Frequently Asked Questions

SheetCompare supports all major spreadsheet and data formats including Excel (.xlsx, .xls), CSV, TSV, JSON, XML, and Google Sheets exports. You can compare files across different formats - for example, comparing an Excel file to a CSV file.

Yes, your data is completely secure. All file processing happens directly in your browser - your files are never uploaded to our servers. This means your sensitive data never leaves your computer, making SheetCompare ideal for confidential business data.

SheetCompare can handle files up to 50MB each. For optimal performance with very large files (over 10MB), we recommend using a modern browser like Chrome or Firefox. The browser-based processing means performance depends on your device's capabilities.

Yes, SheetCompare intelligently handles files with different column structures. It will match columns by header names when possible, and clearly highlight any structural differences between your files including added, removed, or renamed columns.

To compare Google Sheets, first export your sheets as Excel (.xlsx) or CSV files from Google Drive. Then upload both exported files to SheetCompare. Go to File > Download in Google Sheets and select your preferred format.

Yes, SheetCompare identifies duplicate rows within each file and highlights them. You can also use our dedicated Remove Duplicates tool to clean your data before comparison. The comparison view shows exact matches, partial matches, and unique rows.

Yes, you can export your comparison results in multiple formats. Download a detailed report showing all differences, or export the merged/reconciled data as a new spreadsheet. Results can be saved as Excel, CSV, or PDF.

Yes, SheetCompare is completely free to use with no limitations. There are no file size restrictions, no daily usage limits, and no premium features locked behind a paywall. We believe everyone should have access to professional-grade comparison tools.

SheetCompare compares the calculated values of cells, not the underlying formulas. This means if two cells show the same value but use different formulas, they'll be considered matching. For formula-specific comparison, export your sheets with formulas visible.

Currently, SheetCompare compares two files at a time for the most accurate and clear results. For comparing multiple files, we recommend comparing them in pairs - first compare files A and B, then compare the result with file C.

SheetCompare works on all modern browsers including Chrome, Firefox, Safari, and Edge. For the best experience and performance with large files, we recommend using the latest version of Chrome or Firefox.

We love hearing from our users! You can report bugs or request features by emailing us at support@sheetcompare.com. We actively review all feedback and regularly update SheetCompare based on user suggestions.

SheetCompare requires an internet connection to load the application, but once loaded, all processing happens locally in your browser. Your files are never sent over the internet, ensuring privacy even on slower connections.

SheetCompare performs cell-by-cell comparison with 100% accuracy. It detects exact matches, value differences, formatting changes, and structural differences. The algorithm handles edge cases like trailing spaces, number formatting, and date representations.

Yes, SheetCompare is fully responsive and works on tablets and mobile devices. However, for the best experience when comparing large spreadsheets, we recommend using a desktop or laptop computer with a larger screen.