Convert an Excel file to text in your browser.
Drop a spreadsheet and get every sheet back as text, each cell as Excel shows it, ready to paste into ChatGPT, Claude or Gemini.
- .xlsx, .xls and .xlsb read here
- Forty workbooks in, one text file out
- No sign-up, no account
Drop your spreadsheet here
Every sheet read in your browser.
What a spreadsheet looks like once FileConcat has read it
A two-sheet sample workbook. Each sheet comes back under its name, each cell as Excel shows it.
<file path="budget.xlsx" language="xlsx"><![CDATA[ # Sheet: Q3 Item,Budget,Actual Travel,"4,000","3,650" Software,"2,500","2,710" Total,"6,500","6,360" # Sheet: Q4 Item,Budget,Actual ]]></file>
Sample spreadsheet, read by FileConcat 2.2.
What comes through, and what does not
In the text
- Every sheet under its name, rows as comma-separated cells, each cell as Excel shows it.
Not read
- Formulas (their results come through), charts, cell colours and conditional formatting.
Forty workbooks, one file to paste
Drop a folder of workbooks and they come back as one text file, each under its own name, with a token count for the whole set. An assistant that caps attachments counts it as one.
finance/ budget-2025.xlsx budget-2026.xlsx forecast.xlsx headcount.xls
It reads more than spreadsheets
- PDF to textPage by page, scans included.
- Word to textHeadings, tables and footnotes kept.
- PowerPoint to textSlide by slide.
- Image to textWriting in a photo or scan, when you ask.
Also EPUB, email, notebooks, subtitles and ZIP archives.Every format it reads
Common questions
Is my spreadsheet uploaded to a server?
Not to us. FileConcat reads the spreadsheet in your browser and there is no account to create. The only upload is the one you choose to make, when you paste or attach the text at your assistant.
Does it read .xls and other spreadsheets?
Yes. .xlsx, .xlsm, .xlsb and the older .xls are read, and so are OpenDocument .ods files. A CSV is already text and goes in as it is.
Do formulas come through?
Their results do, as Excel shows them: the sample's total reads 6,360, not =SUM(C2:C3). The formula itself is not in the text, and neither are charts, cell colours or conditional formatting.
Can I get plain text without tags?
Yes. Set Format to Plain before you copy or download. The tags go, and each file sits between two rules with its name, under a short summary and the file list.
Can I convert many spreadsheets at once?
Yes. Drop several files or a whole folder. They come back as one text file with each workbook under its own name, so an assistant that limits attachments takes them as one.
Drop your spreadsheet and copy the text
Drop your spreadsheet here
Every sheet read in your browser.