A workbook may look correct in Excel while its CSV delivery contains an old total or an empty cell. Start by checking the results saved inside the XLSX, before assuming that the column separator is wrong.
A formula and its result are separate
Microsoft documents formula text separately from the cached result of its last calculation. That result can be absent, so a file containing formulas does not necessarily contain every value ready for a converter to read.
FileMyLove's XLSX reader builds exported cell text from stored values. It does not recalculate formulas or fetch linked workbooks. An outdated stored result can therefore remain outdated in the CSV.
Diagnose before converting again
| Observation | Our suggested check |
|---|---|
| Blank formula cell | Was a calculated result saved? |
| Old total | Was the source recalculated and saved? |
| Number instead of formula | Does the recipient need table values or working formulas? |
| Product code changes when opening CSV | Check text-column import separately from formulas |
A successful conversion does not verify that values reflect the latest source data, especially for workbooks generated by other software or linked to external data.
Prepare a delivery copy
- Retain the original XLSX and open it in a spreadsheet application supporting its formulas.
- Review source data, recalculate and check error cells.
- Save the reviewed workbook and select that latest file in Convert document.
- Choose CSV, download and inspect it using appropriate column types.
- Compare totals, row counts and several formula-result cells with the source.
If the recipient needs to change inputs and calculate again, agree on a workbook format that retains those formulas.
Check the data representation too
Microsoft warns that text-format saves lose formatting and some features. Our converter exports the cell text it can read, so compare numbers, dates and units with the receiving system's requirements.
See multiple-sheet CSV exports for unexpected ZIP downloads, and long CSV identifiers for codes interpreted as numbers. Converting CSV back to XLSX does not recreate the original missing formulas.
