Generate Excel Formulas Free — Just Describe What You Need
No formula syntax to memorize. Type what you want your spreadsheet to do, and get a ready-to-paste Excel formula in seconds. Free, unlimited, no account required.
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import os
# Folder to clean up — change this to your path
FOLDER = "./photos"
for i, name in enumerate(sorted(os.listdir(FOLDER)), start=1):
src = os.path.join(FOLDER, name)
if not os.path.isfile(src):
continue
ext = os.path.splitext(name)[1].lower()
dst = os.path.join(FOLDER, f"photo_{i:03d}{ext}")
os.rename(src, dst)
print(f"{name} -> {os.path.basename(dst)}")This script renames every file in a folder to photo_001, photo_002, and so on, keeping each file’s extension. Set FOLDER to your folder, then run python rename.py from a terminal.
This page generates Excel formulas from plain-English descriptions. If you know what calculation you want but can't remember — or never learned — the exact formula syntax, just describe the goal and get a copy-paste formula instantly. Perfect for office workers, students, analysts, and anyone who uses Excel regularly but isn't a spreadsheet expert.
How to generate an Excel formula in seconds
Describe your goal in plain English
Tell us what you want Excel to calculate or look up. Be specific: mention the column letters or cell references you're working with, like 'sum column B where column A equals Yes'.
Click Generate
FreeCodeGen sends your description to an AI and returns a formula tailored to your spreadsheet layout. It's free and instant — no account or payment needed.
Read the formula and explanation
You'll see the formula itself plus a plain-English breakdown of how each part works. Take a moment to read it so you understand what you're pasting.
Copy and paste into Excel
Click the copy button, click the target cell in your spreadsheet, and paste. Press Enter to confirm. If Excel shows an error, double-check that your column references match your actual sheet.
Test with a few rows
Verify the result against a few rows you can manually check. If something looks off, come back and refine your description for better results.
About this Excel formula generator
Excel formulas are one of the most powerful features in any spreadsheet program, but the syntax can be intimidating for non-programmers. A formula like =INDEX(C2:C100,MATCH(F1,A2:A100,0)) looks like code — and in a sense it is. That barrier is exactly what this tool removes.
Here are some of the most common formula categories you can generate here:
**Lookup formulas** let you search one column and return a value from another. VLOOKUP has been the classic for decades: =VLOOKUP(lookup_value, table_array, col_index_num, FALSE). But INDEX/MATCH is more flexible because it can look left and handles column insertions gracefully: =INDEX(return_range, MATCH(lookup_value, lookup_range, 0)).
**Conditional formulas** let you branch on a condition. The IF function is the building block: =IF(A1>100,"Yes","No"). Nest multiple IFs for more logic, or use IFS in newer Excel versions for cleaner multi-branch logic.
**Aggregation with conditions** is handled by SUMIF and SUMIFS. SUMIF adds values in one range when another range meets a criterion: =SUMIF(A2:A100,"Approved",B2:B100). SUMIFS supports multiple criteria. Similarly COUNTIF counts matching cells, and AVERAGEIF averages them.
**Text formulas** manipulate strings. CONCATENATE (or the & operator) joins text. LEFT, RIGHT, and MID extract substrings. TRIM removes extra spaces — a lifesaver when importing data from other systems.
**Date and time formulas** like TODAY(), NOW(), DATEDIF, and NETWORKDAYS are commonly needed for project tracking and reporting.
How to enter a formula in Excel: click the target cell, type = (the equals sign starts every formula), then type or paste the formula. Press Enter to confirm. If you see #REF!, a cell reference is broken. If you see #VALUE!, a data type mismatch is likely — make sure numbers aren't stored as text.
Common beginner mistakes: forgetting the = sign, using the wrong cell range, or having extra spaces in text values you're trying to match. This tool generates the correct syntax and explains each argument so you can spot and fix those issues quickly.
Frequently asked questions
Is this Excel formula generator really free?
Yes, completely free with no signup, no credit card, and no usage limits. Just describe your formula and generate.
Do I need to know Excel to use this?
Not at all. That's the whole point — describe what you want in plain English and the tool handles the syntax.
Will the formula work in my version of Excel?
Most formulas generated (IF, VLOOKUP, SUMIF, INDEX/MATCH) work in Excel 2010 and later. For newer functions like IFS or XLOOKUP, you'll need Excel 2019, Excel 365, or a recent update. The explanation will usually note if a function has version requirements.
Can I use these formulas in Google Sheets?
Many Excel formulas work in Google Sheets too, but some syntax differs. If you're working in Google Sheets, use our dedicated Google Sheets formula generator for best results.
Should I test the formula before relying on it?
Always. Check the result against a few rows you can verify manually. AI-generated formulas are accurate most of the time but can get cell references wrong if your description is ambiguous.
What if the formula gives me an error?
Read the error code — #N/A usually means a lookup found no match, #VALUE! usually means a data type mismatch, #REF! means a cell reference is broken. Come back, refine your description with more detail, and regenerate.