Easy Mini-Tools

A small grab-bag of one-shot utilities — the kind of scripts/tools that are too small, too specific, or too fragile to deserve their own repo or polished package… but might still save someone an afternoon.

These tools are intentionally pragmatic:

• Minimal ceremony
• Solve one problem
• May break when upstream UIs/APIs change
• Shared anyway, because sometimes that’s still better than starting from scratch

If you’re looking for curated, stable, long-term maintained tooling… this repo probably isn’t it.
If you’re looking for “I just need this done once” helpers — welcome. 🙂

Contents

✅ Extract Copilot Chat

Export Copilot chat transcripts from JSON files saved via browser DevTools (Network tab) into Markdown.

Copilot UIs change frequently and export options are inconsistent across accounts/tenants. This tool is meant for the common workaround:

1. Open DevTools → Network
2. Save the conversation JSON response(s) to disk
3. Convert to readable .md files you can archive, search, and sort yourself

✅ OFX to XLSX Converter

Convert basic OFX (Open Financial Exchange) bank export files into simple Excel (.xlsx) spreadsheets.

This is a best-effort parser, built for practical use with real-world bank exports — not a full spec-compliant OFX implementation.

Extract Copilot Chat

What it does

• Reads all *.json files in a directory
• Extracts store → rawConversationResponse → messages[]
• Uses each message’s:
  • author
  • timestamp
  • text
• Outputs one Markdown file per JSON file
• Deduplicates messages (common when exports include repeated turns)

Expected JSON shape

{
  "store": {
    "rawConversationResponse": {
      "messages": [
        {
          "author": "user",
          "timestamp": "2026-05-07T21:15:11.123Z",
          "text": "Hello"
        }
      ]
    }
  }
}

How to use

Requirements

• .NET SDK (recommended: .NET 10+)

Run

Assuming you have a console app project under easy-mini-tools/ExtractCopilotChat/:

dotnet run --project easy-mini-tools/ExtractCopilotChat -- "<input-json-directory>" "<output-md-directory>"

If you omit the input directory, the tool will prompt you to enter one. If you omit the output directory, the tool will be configured to write .md files beside each .json.

Example

dotnet run --project easy-mini-tools/ExtractCopilotChat -- "C:\Exports\Copilot\Json" "C:\Exports\Copilot\Md"

Output format

Each markdown file includes:

• A header indicating export time + source file
• Messages grouped by speaker (You / Copilot)
• Timestamps when available
• Message text preserved as-is (including code fences if present)

Known limitations / disclaimers

• Fragile by nature: Copilot’s internal data format and UI network payloads may change without notice.
• Not an official export: You’re exporting data you saved manually from DevTools.
• Deduping is heuristic: It aims to remove common duplicates but may occasionally merge distinct messages that are identical in content.
• No guarantee of completeness: If the network response didn’t include older turns, the output won’t either.

OFX to XLSX Converter

What it does

• Reads a single .ofx file
• Extracts common transaction fields, including:
  • Date
  • Amount
  • Description / Memo
  • Transaction type (if available)
  • Account / balance info (when present)
• Outputs a flat .xlsx file for easy filtering, sorting, and analysis

Supported scenarios

• Typical bank export files (checking / credit accounts)
• OFX files that resemble:
  • SGML-style (older OFX 1.x)
  • Loosely structured, non-strict variants many banks produce

Not supported

• Full OFX 2.x / XML compliance
• Every possible tag or edge case
• Investment account structures (partial at best)
• Multi-account aggregation in a single file

How to use

Run

dotnet run --project easy-mini-tools/OFX-To-XLSX/OFX-To-XLSX-Converter

Output format

The generated spreadsheet includes:

• One row per transaction
• Columns for:
  • Type
  • Date
  • Amount
  • Id
  • Check Number
  • Name
  • Description
• Minimal formatting — intended for post-processing in Excel, not presentation

Known limitations / disclaimers

• Best-effort parsing: OFX files are notoriously inconsistent between institutions.
• Loose parsing strategy: The tool prioritizes “getting usable data out” over strict correctness.
• Field coverage varies: Some banks omit fields or use non-standard tags.
• No validation guarantees: Always sanity-check totals and balances against your source data.
• Encoding quirks: Some OFX files include odd encoding/line break issues that may require manual cleanup.

Contributing

PRs are welcome, but the spirit of this repo is small + useful + low-maintenance.

If you submit improvements, please keep them aligned with the theme:

• No heavy frameworks
• No dependency explosions
• Prefer “drop-in and run” simplicity

Repo structure

A simple layout that stays scalable as you add more mini-tools:

/
  easy-mini-tools/
    ExtractCopilotChat/
      Program.cs
      ExtractCopilotChat.slnx
    OFX-To-XLSX/
      Program.cs
      OFX-To-XLSX.sln
  README.md
  LICENSE

Authors

• NF Software Inc.

License

This project is licensed under the MIT License - see the LICENSE file for details