diff --git a/manifests/t/tumic0/GPXSee/16.6/tumic0.GPXSee.installer.yaml b/manifests/t/tumic0/GPXSee/16.6/tumic0.GPXSee.installer.yaml
new file mode 100644
index 0000000000000..634fb17239da2
--- /dev/null
+++ b/manifests/t/tumic0/GPXSee/16.6/tumic0.GPXSee.installer.yaml
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+# Created with Devicie using komac v2.15.0
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.installer.1.12.0.schema.json
+
+PackageIdentifier: tumic0.GPXSee
+PackageVersion: '16.6'
+InstallerLocale: en-US
+InstallerType: nullsoft
+Scope: machine
+InstallerSwitches:
+  Custom: /norestart
+UpgradeBehavior: uninstallPrevious
+FileExtensions:
+- '000'
+- '031'
+- aqm
+- csa
+- csv
+- cup
+- fit
+- gemf
+- geojson
+- gfw
+- ghp
+- gmi
+- gpi
+- gpx
+- igc
+- img
+- itn
+- jgw
+- jnx
+- jpeg
+- jpg
+- json
+- kap
+- kml
+- kmz
+- loc
+- map
+- mbtiles
+- mov
+- mp4
+- nmea
+- omd
+- ov2
+- pgw
+- plt
+- pma
+- pmtiles
+- qct
+- rmap
+- rte
+- rtmap
+- slf
+- sml
+- sqlite
+- sqlitedb
+- srt
+- tar
+- tba
+- tcx
+- tfw
+- tif
+- tiff
+- trk
+- txt
+- vkx
+- vtk
+- wld
+- wpt
+- xml
+ProductCode: GPXSee
+ReleaseDate: 2026-04-24
+AppsAndFeaturesEntries:
+- DisplayName: GPXSee (x64)
+  ProductCode: GPXSee
+InstallationMetadata:
+  DefaultInstallLocation: '%ProgramFiles%\GPXSee'
+Installers:
+- Architecture: x64
+  InstallerUrl: https://sourceforge.net/projects/gpxsee/files/Windows/GPXSee-16.6_x64.exe/download
+  InstallerSha256: 363a0b3be1307c55ed0e0e88695ee18271a5cb4ac576e6956318f74986ddf07d
+ManifestType: installer
+ManifestVersion: 1.12.0
diff --git a/manifests/t/tumic0/GPXSee/16.6/tumic0.GPXSee.locale.en-US.yaml b/manifests/t/tumic0/GPXSee/16.6/tumic0.GPXSee.locale.en-US.yaml
new file mode 100644
index 0000000000000..f27ec52082337
--- /dev/null
+++ b/manifests/t/tumic0/GPXSee/16.6/tumic0.GPXSee.locale.en-US.yaml
@@ -0,0 +1,45 @@
+# Created with Devicie using komac v2.15.0
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.defaultLocale.1.12.0.schema.json
+
+PackageIdentifier: tumic0.GPXSee
+PackageVersion: '16.6'
+PackageLocale: en-US
+Publisher: Martin Tůma
+PublisherUrl: https://www.gpxsee.org/
+PublisherSupportUrl: https://github.com/tumic0/GPXSee/issues
+Author: tumic0
+PackageName: GPXSee
+PackageUrl: https://www.gpxsee.org/
+License: GNU General Public License version 3.0 (GPLv3)
+LicenseUrl: https://github.com/tumic0/GPXSee/blob/master/licence.txt
+Copyright: Copyright (C) 2015-2026 Martin Tůma
+ShortDescription: GPXSee is a Qt-based GPS log file viewer and analyzer that supports all common GPS log file formats.
+Description: |-
+  GPXSee is a Qt-based GPS log file viewer and analyzer that supports all common GPS log file formats.
+
+  Features:
+  - Opens GPX, TCX, FIT, KML, NMEA, IGC, CUP, SIGMA SLF, Suunto SML, LOC, GeoJSON, OziExplorer (PLT, RTE, WPT), Garmin GPI&CSV, TomTom OV2&ITN, ONmove OMD/GHP, TwoNav (TRK, RTE, WPT), GPSDump WPT, Velocitek VTK, Vakaros VKX, GoPro GPMF videos, DJI videos, Sony RTMD videos, Google CAMM videos, Novatek/VIOFO/Blackvue/Vantrue/70mai dashcam videos and geotagged JPEG/MP4 files.
+  - Opens geo URIs (RFC 5870).
+  - User-definable online maps (OpenStreetMap/Google tiles, WMTS, WMS, TMS, QuadTiles).
+  - Offline maps (MBTiles, PMTiles, OziExplorer maps, TrekBuddy maps/atlases, Garmin IMG/GMAP & JNX maps, TwoNav RMaps, GeoTIFF images, BSB charts, ENC charts, KMZ maps, AlpineQuest maps, Locus/OsmAnd/RMaps SQLite maps, Mapsforge vector maps, QCT maps, GEMF maps, Osmdroid SQLite maps, Orux maps, COROS maps, ESRI World-File georeferenced images).
+  - Elevation, speed, heart rate, cadence, power, temperature and gear ratio/shifts graphs.
+  - Support for DEM files (SRTM HGT).
+  - Support for multiple tracks in one view.
+  - Support for POI files.
+  - Print/export to PDF/PNG.
+  - Full-screen mode.
+  - HiDPI/Retina displays & maps support.
+  - Real-time GPS position.
+Moniker: gpxsee
+ReleaseNotes: |-
+  Update to version 16.6
+  * Fixed possible buffer overflow in GPI Parser.
+  * Fixed track selection / popup generation.
+ReleaseNotesUrl: https://build.opensuse.org/projects/home:tumic:GPXSee/packages/gpxsee/files/gpxsee.changes
+Documentations:
+- DocumentLabel: Documentation
+  DocumentUrl: https://www.gpxsee.org/doc.html
+- DocumentLabel: GPXSee maps repository
+  DocumentUrl: https://github.com/tumic0/GPXSee-maps
+ManifestType: defaultLocale
+ManifestVersion: 1.12.0
diff --git a/manifests/t/tumic0/GPXSee/16.6/tumic0.GPXSee.yaml b/manifests/t/tumic0/GPXSee/16.6/tumic0.GPXSee.yaml
new file mode 100644
index 0000000000000..38183a14acbda
--- /dev/null
+++ b/manifests/t/tumic0/GPXSee/16.6/tumic0.GPXSee.yaml
@@ -0,0 +1,8 @@
+# Created with Devicie using komac v2.15.0
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.version.1.12.0.schema.json
+
+PackageIdentifier: tumic0.GPXSee
+PackageVersion: '16.6'
+DefaultLocale: en-US
+ManifestType: version
+ManifestVersion: 1.12.0