Viztab Blog

Your CSV is too big and Excel just crashed again. Here are the actual solutions — from command-line one-liners to tools built for the job.

Excel has hard limits on rows, memory, and file size. Understanding why it crashes helps you pick the right tool for large datasets.

Million-row datasets are common in analytics and reporting. Here is how to open, filter, and analyze them without specialized database tools.

Data scientists need spreadsheets that handle large files, support formulas, and play nice with CSV exports from Python and R.

Need to convert a CSV to an Excel file? Here are free methods that work for small files and large ones alike, no software install required.

Google Sheets caps out at 10 million cells. When your data outgrows that limit, here is what to do next.

Filtering and sorting a gigabyte-scale CSV is impossible in most spreadsheets. These approaches actually work.

Excel stops at 1,048,576 rows. If your dataset is bigger than that, here are practical workarounds and alternatives.

You do not need Microsoft Office to open Excel files. These free tools read XLSX files on any platform with full formatting support.

Online spreadsheets are convenient but hit their limits fast with big data. Here is when to go desktop and what to look for.