Short answer
Choose the worksheets, separate files or one ZIP, delimiter and encoding, then inspect dates, numbers, formulas and non-English text before using the output.
When to use this method
This is a local data export workflow, not a spreadsheet calculation engine. Just Converter does not recalculate formulas.
How we checked this guideSee what we reviewed, what we confirmed, and where the feature stops.
- What we reviewed
- Reviewed XLSX discovery, sheet selection, CSV and ZIP output, delimiter, encoding and formula handling.
- What we confirmed
- Each selected worksheet becomes its own CSV. A ZIP packages those files but does not combine their rows.
- Important limit
- A formula is exported from its cached value. A missing cached value becomes an empty field with a warning.
What you need before exporting workbook sheets
XLSX is a workbook that can contain several worksheets, formulas and formatting. CSV is plain row-and-column text and holds one table per file. Exporting every worksheet therefore creates several CSV files, which can be placed in one ZIP for easier transfer. Charts, cell styling, formulas and workbook behavior do not become CSV features.
Export workbook sheets deliberately
Inspect sheet names
Identify the worksheets the receiving system actually needs.
Choose sheets and packaging
Export selected or all sheets as separate CSV files, or collect them in one ZIP.
Set delimiter and encoding
Match the application that will import the CSV and preserve non-English text.
Verify data types
Compare row counts, dates, decimal separators, formula results and representative text.
Checkpoint: inspect the data two ways
Open each CSV in a plain-text editor to confirm the delimiter, encoding and header row, then open it in the receiving spreadsheet or data tool. Compare row counts, dates, decimal values, leading zeros and non-English text. Formula results are stored values from the workbook; the export does not recalculate them.
If columns, symbols or formula results look wrong
Open the CSV with the delimiter and character encoding chosen during export. Compare a few dates, decimals, leading zeros and non-English characters with the workbook. The app does not calculate formulas: it exports a stored result when one exists and leaves the field empty with a warning when it does not.
CSV export mistakes
- Expecting formulas to be recalculated
- Choosing a delimiter the receiver interprets incorrectly
- Skipping date, number and encoding checks
Workbook result checks
- The expected sheets were exported.
- Row counts and representative values match.
- Warnings for missing cached formula values were reviewed.
Just Converter
Export selected or all workbook sheets as separate CSV files or one ZIP without uploading the workbook.