## Summary of the Pull Request
Supersedes https://github.com/microsoft/PowerToys/pull/41465
1) Fix for where template file or folder only contained numbers
2) Fix for where hidden files are shown in the list of templates
## PR Checklist
- [x] Closes: #36216
- [x] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [n/a] **Tests:** Added/updated and all pass
- [n/a] **Localization:** All end-user-facing strings can be localized
- [n/a] **Dev docs:** Added/updated
- [n/a] **New binaries:** Added on the required places
- [n/a] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [n/a] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [n/a] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [n/a] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [n/a] **Documentation updated:** If checked, please file a pull
request on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx
## Detailed Description of the Pull Request / Additional comments
1) Fix for where template file or folder only contained numbers
// Filename cases to support
// type | filename | result
// [file] | 01. First entry.txt | First entry.txt
// [folder] | 02. Second entry | Second entry
// [folder] | 03 Third entry | Third entry
// [file] | 04 Fourth entry.txt | Fourth entry.txt
// [file] | 05.Fifth entry.txt | Fifth entry.txt
// [folder] | 001231 | 001231
// [file] | 001231.txt | 001231.txt
// [file] | 13. 0123456789012345.txt | 0123456789012345.txt
2) Fix for where hidden files are shown in the list of templates
Instead of excluding based on filename (desktop.ini) exclude based on
hidden and system attribute being set
## Validation Steps Performed
### Before fix
Notice
1) Folders with numbers only aren't displayed on the context menu
2) Files with extension with numbers only show extension on the context
menu
3) Some hidden files are shown
<img width="1893" height="786" alt="image"
src="https://github.com/user-attachments/assets/3845a541-499f-47a7-ae99-a92886f74214"
/>
### After fixes
#### Scenario 1
New+ Setting: Hide leading digits…: Yes
New+ Setting: Hide file extension: Yes
New+ Setting: Replace variables: No
<img width="1816" height="1185" alt="image"
src="https://github.com/user-attachments/assets/5ed2c205-d5ce-4366-90d9-c08ef4d2881f"
/>
#### Scenario 2
New+ Setting: Hide leading digits…: No
New+ Setting: Hide file extension: No
New+ Setting: Replace variables: No
<img width="1819" height="1197" alt="image"
src="https://github.com/user-attachments/assets/710265d5-94e9-4fee-9a47-a7bbb78b45bd"
/>
#### Scenario 3
New+ Setting: Hide leading digits…: Yes
New+ Setting: Hide file extension: Yes
New+ Setting: Replace variables: Yes
<img width="1816" height="1197" alt="image"
src="https://github.com/user-attachments/assets/45a90cdd-ec21-4425-9de0-c323ec90f149"
/>
* Add variable support - initial version without UI
* Add variable in template filename support in New+
* Fix XAML style
* Addressed code review feedback
