FilesStayLocal™
HOW IT WORKS

Free File Combiner to One Dataset

Free access available now. No payment required during the current launch period.

Combine related Excel, CSV, TSV and structured-delimited text files into one normalized dataset.

Start Free Access See All Products
Local processing & source-file safety. Your source files stay on your computer during normal document processing and are not uploaded to FilesStayLocal. The original source files are not modified; FilesStayLocal creates separate output files. Please review generated results before using them for important business or operational work.
High-level flow

From source files to finished output

A simple local workflow designed to keep your source documents on your computer.

1
Select your filesChoose the source files for this product inside the desktop app.
2
Process locallyFilesStayLocal reads them on your computer. No website upload is required.
3
Review the resultInspect the structured output and any review notes produced by the tool.
4
Save the new fileYour originals stay unchanged; the tool creates a separate output file.
XLSX
CSV
TSV / TXT
→
Combined dataset.xlsx
Example

See the source file and the output it creates

Compare the source with the generated result. Click either preview to see the full-size file view.

ZIPSource file
Open file
Source file preview
XLSXGenerated output
Open file
Generated output preview

What is in the source

january.csv
Date,Customer,Amount
2026-01-03,Acme,1250

february.xlsx
Customer | Transaction Date | Amount USD
Acme | 2026-02-07 | 980

march.tsv
Date	Customer	Amount
2026-03-10	Beta Co	760

What the output contains

Source File | Date | Customer | Amount
january.csv | 2026-01-03 | Acme | 1250
february.xlsx | 2026-02-07 | Acme | 980
march.tsv | 2026-03-10 | Beta Co | 760

Column Mapping
Transaction Date → Date
Amount USD → Amount
Supported source patterns

What your files can look like

CSV/XLSX/TSVMild header differencesDifferent column orderExtra columnsMissing optional columnsSource traceability

What to expect: Structured files are normalized into one dataset. Free-form prose is not guessed into columns.

Source quality

Digital text and structured files work best

Best resultsText-based PDFs or structured spreadsheet/text files where content can be read normally by the desktop app.
Complex layoutsHeaders, repeated page headings, multiple tables, mixed narrative + tables and missing optional values are handled conservatively when the product supports them.
Scanned/image-only PDFsOCR is not enabled yet. Image-only inputs are detected and flagged for review instead of silently producing unreliable data.
Privacy

No website upload required

Select your files inside the downloaded desktop app. Source documents are processed locally on your computer; the website is used for account, licensing and downloads.

Your original files are never modified. FilesStayLocal creates a new output file.

Access

Try it without sharing your documents

Free Access duration: 2 hours. Duration is controlled by the license service.

Start Free AccessSee All Products
Important limitation

Review matters when the source is ambiguous

FilesStayLocal is designed to preserve traceability and flag uncertainty rather than invent missing values. Highly inconsistent layouts, image-only sources and ambiguous fields can require human review.