Your LEGO collection might be worth more than you think. Across the AFOL community, collections routinely reach five and six figures in total value. Even a modest collection of twenty to thirty sets can represent thousands of dollars. That value exists whether you are tracking it or not - but if something happens, you need documentation.
House fires, floods, theft, and water damage do not care how carefully you organized your LEGO room. Insurance companies do not take your word for what was on the shelf. They want a list. They want set numbers, purchase dates, purchase prices, and current market values. They want proof that you owned what you say you owned, and they want it in a format they can process.
That is one reason to export your LEGO collection to a spreadsheet. But it is not the only reason. Collectors export their data for backup, for sharing with family members who need to understand the collection's value, for tax purposes on large sales, for estate planning, and simply for the satisfaction of seeing their entire collection in a clean, sortable table.
GameSetBrick makes this easy. If your collection is logged in the Vault, you can export everything to a CSV file in seconds. That CSV opens in Excel, Google Sheets, Numbers, or any spreadsheet application. From there, you can sort, filter, print, or share it however you need.
The export process is straightforward. Here is exactly how to do it:
- Open GameSetBrick. Go to gamesetbrick.com or tap the app icon on your home screen if you have installed the PWA.
- Navigate to your Vault. The Vault is where your entire collection lives - every set you have added with its details, purchase information, and current market values.
- Find the Export option. Look for the export or download button within the Vault interface. It is typically represented by a download icon or labeled "Export CSV."
- Tap Export. GameSetBrick generates a CSV file containing your complete collection data and downloads it to your device.
- Open the file. On a computer, double-click the CSV file and it will open in your default spreadsheet application. On a phone, you can share the file to Google Sheets, email it to yourself, or save it to cloud storage.
The entire process takes less than a minute. The resulting file contains every set in your Vault with all associated data fields.
The CSV export from GameSetBrick includes comprehensive data for each set in your collection. Here is what you get:
Set Number: The official LEGO set number (e.g., 10294, 76919, 21060). This is the universal identifier that insurance companies, resellers, and other collectors recognize.
Set Name: The official name of the set as published by LEGO. This makes the spreadsheet human-readable without requiring set number lookups.
Theme: The LEGO theme the set belongs to - Speed Champions, Architecture, Star Wars, Creator Expert, Icons, City, and so on. This lets you sort and filter by theme to see your collection breakdown.
Piece Count: The total number of pieces in the set. Useful for insurance documentation and for understanding the scale of your collection. Some insurance adjusters use piece count as a secondary verification of set identity.
Purchase Price: What you actually paid for the set, as entered when you added it to your Vault. This is your cost basis - the number that matters for calculating returns and for insurance claims that reimburse based on original purchase price.
Purchase Date: When you acquired the set. Important for insurance claims, for understanding how long you have held each set, and for tracking your purchasing patterns over time.
Condition: The condition of the set as you logged it - new sealed, built complete, or built incomplete. Condition significantly affects market value, and having it documented per-set is essential for accurate insurance claims.
Current Market Value: The current secondary market value based on BrickLink sales data, as of the export date. This is what your set would likely sell for today. For insurance purposes, this establishes replacement cost.
ROI: Your return on investment for each set - the percentage difference between what you paid and what the set is currently worth. While this is more of an investment metric than an insurance metric, it is useful for understanding which sets in your collection have performed best.
Year Released: The year LEGO released the set. Helpful for organizing your collection chronologically and for identifying retired sets.
If you are using the CSV export for insurance purposes, here is how to make it most effective:
Export regularly. Set a reminder to export your collection at least once a quarter. Every time you add a significant number of sets to your Vault, export a fresh copy. Insurance claims require documentation that is reasonably current. A three-year-old export will not accurately reflect sets you purchased last month.
Store copies in multiple locations. Save the CSV file to cloud storage (Google Drive, iCloud, Dropbox) and email a copy to yourself. If your house burns down and your phone is in it, you need the file to survive. Cloud storage is the safest option. Some collectors also give a copy to a trusted family member or their insurance agent directly.
Supplement with photos. The CSV provides the financial data, but photos provide visual proof of ownership. Take periodic photos or videos of your LEGO displays and storage. A walkthrough video of your LEGO room, combined with the CSV export, creates strong documentation for any insurance claim.
Check your policy. Standard homeowners and renters insurance policies cover personal property, but they may have limits on collectibles. If your LEGO collection is worth more than $5,000, talk to your insurance agent about a personal articles policy or a scheduled rider that specifically covers your collection at its appraised value. The GameSetBrick export gives your agent the data they need to write that coverage accurately.
Understand replacement cost vs. actual cash value. Replacement cost policies pay what it would cost to replace the item at today's prices. Actual cash value policies deduct depreciation. For LEGO, replacement cost is almost always better because retired sets cost more to replace than you originally paid. The current market value field in your export establishes replacement cost.
For retired sets that have increased significantly in value, the market value from GameSetBrick gives your insurer a defensible number based on actual BrickLink sales data rather than a guess. If a retired set has a current market value of $350 and you paid $50 for it at retail five years ago, you want your claim to reflect the $350 replacement cost, not the $50 purchase price.
Beyond insurance, the CSV export is a powerful analysis tool when opened in a spreadsheet application. Here are some useful things you can do with the data:
Sort by ROI to find your best performers. Sort the spreadsheet by the ROI column in descending order. Your most successful investments rise to the top. This helps you understand which themes, price points, and buying strategies have worked best for your collection. Cross-reference with the ROI tracking features inside GameSetBrick for ongoing monitoring.
Filter by theme to see your collection breakdown. Use spreadsheet filters to isolate specific themes. How much of your collection is Speed Champions? How much is Architecture? What is the total value of your Star Wars sets? These theme-level summaries help you understand your collecting patterns and identify areas where you might want to diversify or double down.
Calculate total investment. Sum the purchase price column to see your total cash invested. Compare that to the sum of the current market value column to see your total portfolio performance. This is the big-picture view of whether your collection has gained or lost value overall.
Identify sets to sell. Sort by condition and market value to find built-complete or built-incomplete sets that have high market values. These might be candidates for selling if you are ready to cash out some returns. The data helps you make rational decisions about which sets to part with based on value rather than emotion.
Track spending over time. Sort by purchase date to see your buying patterns. Are you spending more each month? Are there seasonal spikes? Did you buy a lot of sets during a particular sale event? Understanding your spending patterns helps you budget for future purchases and avoid collection creep.
Share with family. If your spouse, partner, or family members want to understand the scope and value of your collection, a clean spreadsheet is the most effective communication tool. It transforms "a lot of LEGO boxes" into a documented collection with real numbers. This can be important for household budgeting, estate planning, and general family communication about the hobby.
Keep your Vault data clean. The export is only as good as the data you have entered. Make sure purchase prices are accurate, conditions are correct, and dates are right. The time to fix data is when you add a set to the Vault, not when you are filing an insurance claim. If you need to update entries, do it inside GameSetBrick and then export a fresh copy.
Use the export to validate your Vault. Opening your collection in a spreadsheet sometimes reveals errors you missed in the app interface. A set with a suspiciously high or low purchase price stands out more clearly when you can see all your sets sorted by price. Use the export as a quality check on your own data entry.
Combine with minifig tracking. If you track minifigures separately in GameSetBrick, those records add another layer of documentation. Some minifigures are worth more than the sets they came in, and having them documented is important for complete insurance coverage.
Create a naming convention for files. When you save your exports, use a consistent naming convention that includes the date: lego-collection-2026-03-21.csv. This makes it easy to find the most recent export and to track how your collection has changed over time by comparing exports from different dates.
Your LEGO collection is a real asset with real value. Documenting it properly takes minutes and protects you in situations where documentation is the difference between a full insurance payout and a frustrating battle with an adjuster. Open GameSetBrick, make sure your Vault is current, and export a copy today. Future you will be grateful.
Export your full LEGO collection to CSV for free at gamesetbrick.com - insurance documentation, inventory backup, and portfolio analysis in one click.