Grid Marks

Columns in your file

Mark details

Mark name (line label in the list)

Due date

Notes / job details (combine columns)

Tick one or more columns — values are merged into a single notes field per mark.

Location / coordinates

Coordinate format in your file

Quick scan

Instant — checks UK bounds, E/N range, and coord mismatch. No internet needed.

Deep scan

Also checks water and weak addresses via OpenStreetMap.

Updating 0 marks

What to edit

Set specific date

Shift by days

Quick preset

Drop file to import

Marks spreadsheet

.xlsx / .xls / .csv — opens the column mapper

History archive

AssetAssurance, WorkSummary or any export

Project file

.json backup — replaces current marks

Source name (shown on each record)

Reference column

Type / task column

Completion date column (optional)

Without one, records are dated by the month in the filename or import date.

Location columns (scanned in order)

Show in mark popups (tick what surveyors should see)

These appear under each nearby record, e.g. Job Status, Job Notes, DP, CP. Your choices are remembered for this file layout.

Importing marks…

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Match columns in the previous step, then import places marks on the map. Large imports skip address lookup for speed — addresses fill in afterwards.