Can this replace a proper CSV import?

For everyday delimited files, yes - lines become rows, delimited fields become columns, and you skip Excel's import wizard. For files with quoted fields containing commas or line breaks, a real CSV parse is more reliable than a plain-text split.

How well does it handle a 500,000-line log file?

Within XLSX's limits comfortably - the format allows 1,048,576 rows per sheet. Expect Excel to need a moment to open the result, and consider filtering the log down first; analysis is faster on less.

Do timestamps in my log become real Excel dates?

Only if they match a pattern Excel recognises; ISO timestamps like 2026-07-15 usually parse, while epoch seconds and bracketed formats stay text. Convert stubborn columns with DATEVALUE or Power Query once the data is in.

TXT to XLSX Converter – Free & Online

Convert TXT to XLSX

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Turning a TXT file into an XLSX workbook drops each text line into a spreadsheet row, so exported data becomes filterable in Excel. Values separated by tabs or commas split into columns automatically, which turns server logs, sensor dumps, and CSV-like exports into something you can analyse.

Convert TXT to XLSX – Free Online TXT to XLSX Converter

Why convert TXT to XLSX?

Work through application logs with filters, pivot tables, and COUNTIF instead of scrolling a text editor.
Move data emitted by scripts or old systems into modern Excel or Google Sheets in one step.
Clean up a messy delimited file visually before loading it anywhere more serious.

Tip: Type inference bites on import: a 16-digit account number can flip to scientific notation, and 007 loses its zeros. Set such columns to Text in Excel before saving anything.

How to convert TXT to XLSX

Upload your TXT file using the area above.
XLSX is preselected as the target format.
Click Start and wait for the conversion to finish.
Download your converted XLSX file.

Convert TXT to XLSX

Convert TXT to XLSX – Free Online TXT to XLSX Converter

Why convert TXT to XLSX?

How to convert TXT to XLSX

TXT to XLSX — Frequently Asked Questions