FormulaSurge

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Slow-File Diagnoser

Click-through diagnostic that routes your slow Excel file to one of seven known fixes - in the order we try them, before you buy a new tool.

A slow Excel file rarely has one cause - it has a dominant one. Click through four to six questions about your symptoms and land on the single fix most likely to turn your file around in an afternoon. Seven known fixes, in the order we try them. Nothing leaves your browser.

Step 1 · click-through20%
What is the main symptom?

Why we built this

Nine out of ten slow files turn around in an afternoon.

Slow files are the most common reason finance teams start shopping for a new BI tool. The seven fixes in this diagnostic - in the order we try them - turn around the bulk of slow files before you sign a licence. Power Query, the data model, and a few habits of well-built workbooks do most of the work. Migration is rarely the first answer.

Read the full reasoning on the seven-fixes blog post.

Want the fix confirmed on your actual file?

Send us the workbook. We will tell you if the route was correct.

Free audit - the seven mechanical checks, plus a confirmation of which slow-file fix applies, in writing, within one working day.

Self-serve

No signup

Direct channels

Score it, then
build it.

Free tools
15
Time to result
<2m
Forms to fill
0
  1. 1Run the tool
  2. 2Send the output
  3. 3Get the build
Mutual NDA availableCalls scheduled in your timezone

Self-serve standards

Six rules on every free tool on this site.

Self-serve tools, not signup-walled demos. The same six rules on every calculator, audit and quiz we publish.